LadyHaven68 LadyHaven68

27-04-2015
Mathematics

Answered

Expand and simplify (x-5)(x+7)

Answer :

27-04-2015

(x-5)(x+7)=
x*x+x*7-5*x-5*7=
x^2+7x-5x-35=
x^2+2x-35

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