Answer: -60x^4 + 30x^3 - 80x^2
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Step-by-step explanation:
The distribution rule says to multiply the outer term by each term inside the parenthesis.
We'll multiply the outer term 10x^2 with each term inside -6x^2, 3x and -8
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10x^2*(-6x^2 + 3x - 8)
10x^2*(-6x^2) + 10x^2*(3x) + 10x^2*(-8)
-60x^4 + 30x^3 - 80x^2