Question

The expression −8x^3(7x^6 − 3x^5) is equivalent to:

Answer 1

$-8x^3(7x^6 - 3x^5) =(-8x^3) \cdot 7x^6 - (-8x^3) \cdot 3x^5 = \\ \\ =-56x^{3+6} +24x^{3+5}= -56x^{9} +24x^{8} \\ \\Answer : \ A. \ \ -56x^9 + 24x^8$

Answer 2

$-8x^3(7x^6-3x^5)=-56x^9+24x^8$