jacckiie4069
21.12.2019 •
Mathematics
Simplify the expression -4x2(3x − 7).
a.
-12x^3 + 28
b.
-12x^3 + 28x^2
c.
-12x^3 − 28
d.
-12x^3 − 28x^2
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Ответ:
B
Step-by-step explanation:
-4x^2(3x − 7) = 3x (-4x^2)-7 (-4x^2)
= -12x^3 + 28x^2
Ответ:
-y - 1 = 3
Step-by-step explanation:
Just took the test so I guarantee u thats correct!
Good luck guys!