AutumnJoy12
20.10.2019 •
Mathematics
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)
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Ответ:
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!
Ответ:
1-3=-2
1+4=5