faithgibson2004 faithgibson2004

16-11-2020
Mathematics

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factor x^2+6x-16 into the form (x+a)(x-b), what is a and b?

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virtuematane virtuematane

16-11-2020

Answer:

a=-8 b=2

Step-by-step explanation:

x^2+6x-16

x^2+(8-2)x-16=0

x^2+8x-2x-16=0

X(X+8)-2(X+8)=0

(X+8)(x-2)=0

Compare with (X+a)(X+b)

Where we get a=-8 b=2

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