Question

the correct simplification of the expression -5x2(4x - 6x2 - 3).

Answer 1

Distribute it into the parenthesis.

\(-5x^2 \times 4x\)

\(-5x^2 \times -6x^2\)

\(-5x^2 \times -3\)

Answer 2

Can you multiply those together?

Answer 3

yes hold on

Answer 4

Remember, when we distribute we distribute the number(s) outside of the parenthesis to all the numbers inside the parenthesis.

Answer 5

so would it be -30x^4+20x^3-15x^2?

Answer 6

@iGreen

Answer 7

That wouldn't be -30..-5 * -6 isn't -30.

Answer 8

Also, it wouldn't be 20 or -15.

Answer 9

Everything else is correct, just the whole numbers.

-5 * 4 = ?
-5 * -6 = ?
-5 * -3 = ?

Answer 10

then its -11x^4-x^3-8x^2

Answer 11

@iGreen

Answer 12

. . .

No..

What's -5 * 4?

Answer 13

Only thing wrong here is your signs:

\(-30x^4+20x^3-15x^2\)

It should be:

\(30x^4 - 20x^3 + 15x^2\)

Answer 14

ohh i gotchuthank you