factor x^2+8x+16

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2 Answers

x^2 + 8x + 16

what multiplies to 16 and adds to 8?

4 and 4

so it factors to (x + 4)(x + 4) = (x +4)^2
by Level 5 User (11.9k points)

 x^2+8x+16

x^2+(4+4)x+16

x^2+4x+4x+16

x(x+4)+4(x+4)

x=-4,-4

by

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