3 years ago

Hi, I'm very confused. I honestly don't get this at all! :(

1 answer:

gladu [14]3 years ago

5 0

-a^2+7b^4-2c^3
-(-4)^2+7(-2)^4-2(-3)^3
= -(16)+7(16)-2(27)
= -16+112-54
=-70+112
=42

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