Question

Choose the correct simplification of the expression -4x^2(6x - 5x^2 - 5).

20x^4 + 24x^3 + 20x^2

-9x^4 + 2x^3 - 9x^2

20x^4 - 24x^3 + 20x^2

-20x^4 + 24x^3 - 20x^2

Answer 1

Multiply -4x^2 by each term present in the bracket

Answer 2

For example:

\[\large{-4*x^2(6x - 5x^2 - 5)}\]

\[\large{= -4x^2*6x - (-4x^2)*5x^2 - (-4x^2)*5}\]

Answer 3

\[20x^{4}-20x ^{3}+20x ^{2}\]

Answer 4

[20x ^{4}-24x ^{3}+20x ^{2}\]