2 years ago

Multiply -6x^3(5x^2-6x+7),,,and Expand (9b+9)^2

Mathematics

1 answer:

Scrat [10]2 years ago

8 0

1)
-30x^5+36x^4-42x^3

2)(9b+9)^2 by ( a+b)^2=a^2+b^2+2ab
49b^2+49+162b

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