Question

Which of the following is the complete factorization of 3x 2 - 6x - 240?

3(x - 2)(x - 80)
3(x + 8)(x - 10)
3x(x - 2)(x - 10)

Answer 1

Answer:

Option B.

Step-by-step explanation:

The given expression is

$3x^2-6x-240$

We need to find the complete factored form of the given expression.

Taking out GCF, we get

$3(x^2-2x-80)$

Splitting the middle term, we get

$3(x^2-10x+8x-80)$

$3(x(x-10)+8(x-10))$

Taking out common factor.

$3(x-10)(x+8)$

$3(x+8)(x-10)$

It is the complete factored form.

Hence, the correct option is B.

Answer 2

Answer:

B

Step-by-step explanation: