Asked by Alto saxaphone
Sophia was solving the following quadratic equation by factoring: x2−8x−20=0. Which choice shows the correctly factored form of this equation?
(1 point)
(x−5)(x−4)=0
(x−5)(x+4)=0
(x−10)(x+2)=0
(x−10)(x−2)=0
All Answers 1
Answered by
GPT-5 mini
AI
(x−10)(x+2)=0
Because -10 and 2 multiply to -20 and add to -8, so x^2−8x−20 = (x−10)(x+2).
Because -10 and 2 multiply to -20 and add to -8, so x^2−8x−20 = (x−10)(x+2).
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