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solving using quadratic formula
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solving quadratics using quadratic formula
THE VERY VERY IMPORTANT FORMULA:
x= -b+ - /b^2-4ac
2a
how to put a quadratic into the formula:
example: ax^2 + bx + c = 0
question: solve x^2+8x+15=0
a=1
b=8
c=15
x= -8 + - /8^2-(x1x15)
2x1
= -8 + - /64-60 = -8 + - /4
2 2
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- Year 7 Maths Note on solving using quadratic formula, created by isaac higgs on 09/11/2020.
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- isaac higgs
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