Expand and Simplify:
(m+7)(m+3)

Factorise the following:
1)6+9x
2)y²-16
3)2p²-p-10

Solve by factorising the equation:
8x²-30x-27=0

Rearrange:
a(q-c)=d
to make q the subject

P=n²+a/n+a
Rearrange the formula to make a the subject