Adding & Subtracting Polynomials

["https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639239/desktop_0ee8fcc5-d29e-492c-99a8-6e8ccfe6cc66.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639428/desktop_8df77826-6b92-4fe4-bc85-62de7b385635.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639832/desktop_d0ab087c-54a7-4d84-84cd-9db4c3dac68b.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640048/desktop_4efe26bf-201a-47ca-b7ca-2e1cda2d6bdb.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640080/desktop_1323a9c5-fd7a-40f1-9c96-6f1bdb9f0f9e.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640128/desktop_6d5c6a6b-5692-4e4d-818f-024a23dd2419.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640157/desktop_ae323ca1-3365-4deb-82a5-a58fc54d26cf.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640189/desktop_2a0c2647-7f8e-45bc-9b27-ab8b1010f94d.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11653844/desktop_a52fa3b2-7453-40a5-8cb4-f62b13a480af.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640208/desktop_404dd7d4-ace2-45de-b768-51d0ef57f229.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639402/desktop_e1056b72-9361-4083-90c9-cd4ec553dcb2.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639333/desktop_8102ef12-dfb1-4ca6-8e71-731d8dbb3516.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639408/desktop_31f769a9-af1e-4395-939f-71e6f5cb71dc.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639414/desktop_0089ed82-dd35-4c56-9237-b19974de107e.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639761/desktop_83ca9140-0bcd-4736-b5f9-787356b4da16.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639766/desktop_a69f5eb6-97dc-4ca1-af8e-040e5d60a809.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639771/desktop_49595f27-9953-46ec-b091-c4aec92efab2.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639784/desktop_1a474278-5ec8-43c4-92f0-27e3b9314e57.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639842/desktop_a684aa64-b56c-434b-9d11-1bedb179c332.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639852/desktop_709a286a-747e-4785-a0be-b2e84ef3e939.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639865/desktop_817b634a-0edf-4fab-b1a5-10e7486729a5.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11639869/desktop_fa623c89-5eaa-43fa-a332-72818cc88675.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640054/desktop_ca57b5ea-11cd-4a2c-8713-b8de47d9863a.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640058/desktop_beed1542-76ba-4d49-85b7-4d1f3e9ce473.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640063/desktop_e495f610-00f7-4e19-840b-af2ee557442a.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640064/desktop_11f5e196-85d4-4f7a-915b-d1329bc540d8.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640090/desktop_09a3cfd5-acc0-4c9e-9302-5531fb5fe7f1.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640095/desktop_b737b691-975c-4412-bba7-e7cc77cce9ac.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640103/desktop_32bf5bff-4a14-4804-a3d6-c912806e08a4.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640111/desktop_39c42a2d-ae0e-4d04-83ae-0eeacadd65d5.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640135/desktop_0f0f35f5-5f60-4e17-aa0e-b7d84e5b4a6c.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640138/desktop_efb49da2-7ba5-4537-b0e8-27680d6a0c6d.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640142/desktop_7f0fb413-124c-4122-9fbd-cff63cfd74c4.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640144/desktop_3b94ac40-5ac9-454c-a17b-1ce9b13555c8.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640164/desktop_29be9339-3e04-4e58-8fcc-f2ee2da1d47c.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640171/desktop_d2ad65de-26a0-4bb2-b51f-b0b5dedbec49.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640176/desktop_640feff9-b658-420d-a82d-427123eb4be7.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640179/desktop_6b37ea8e-1e64-42e1-a201-8aa19339f19f.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640214/desktop_433e3975-0a4e-43bf-9336-b823a29dccf0.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640219/desktop_595f1479-ac0e-40b0-ba4c-831e6d32681a.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640223/desktop_1a953cc7-f974-4801-87fd-30d73758d439.png","https://examtimeassets.s3.amazonaws.com/uploads/media/image/11640229/desktop_dc7cac30-95b5-4531-a1af-992ab66affff.png"]