Question

Which expression is equivalent to (3x² + 3x - 3) - (6x² - 4x - 2)?

Answer 1

Answer:

A. $12x^{4} -4x^{3} +3x^{2} +3x+20$

Step-by-step explanation:

For this problem, we have to combine like terms.

Let's look at the equation:

$(12x^{4} -4x^{3} +7x+6)+(3x^{2} -4x+14)$

$12x^{4$, $-4x^{3}$, $3x^{2}$ do not have any other like terms, so we keep all in the final answer.

$7x$ and $-4x$ are like terms, so we combine them. $7x-4x=3x$

14 and 6 are like terms, so we combine them. 14+6 = 20

Let's put everything into the final equation:

$12x^{4} -4x^{3} +3x^{2} +3x+20$

So, the final answer is A. $12x^{4} -4x^{3} +3x^{2} +3x+20$

Hope this helps! If you have any questions about my work, leave them in the comments below!