Question

Which shows one way to determine the factors of x^3+11x^2-3x-33 by grouping?

Answer 1

Answer:

The correct answer is D. $x^2\left(x+11\right)-3\left(x+11\right)$.

Step-by-step explanation:

To factor the expression $x^3+11x^2-3x-33$ by grouping you must:

First, notice that there is no factor common to all terms. However, if we group the first two terms together and the last two terms together, each group has its own greatest common factor.

$\left(x^3+11x^2\right)+\left(-3x-33\right)$

Second, factor out $x^2$ from $x^3+11x^2$:

$x^2\left(x+11\right)$

Next, factor out $-3$ from $-3x-33$:

$-3\left(x+11\right)$

Therefore,

$x^3+11x^2-3x-33=x^2\left(x+11\right)-3\left(x+11\right)$

Answer 2

That would be  Option D  

The last step would be 
= (x^2  - 3)(x + 11)