LadyHaven68
LadyHaven68
27-04-2015
Mathematics
Answered
Expand and simplify (x-5)(x+7)
Answer :
MrTang
MrTang
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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