ma4rgol3derry ma4rgol3derry

07-06-2016
Mathematics

contestada

Which of the following is equivalent to
the expression below?
x^2+ 7x-60
A. (x 1 +12)(x-5)
B. (x +10)(x-6)
C. (x+15)(x-4)
D. (x+20)(x-3)

Respuesta :

D1eformetal D1eformetal

07-06-2016

B)(x+10).(x-6)=x²-6x+10x-60
x²+4x-60

C)(x+15).(x-4)=x²-4x+15x-60
x²+11x-60

D)(x+20).(x-3)=x²-3x+20x-60
x²+17x-60

But A,
(x+12)(x-5)=x²-5x+12x-60
x²+7x-60

A, is the correct answer..
GOOD LUCK!

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