Question

HELP ASAP

Simplify the following expression:
2x − 8y + 3x2 + 7y − 12x

Question options:

3x2 − 14x − y


3x2 − 10x − y


3x2 − 10x − 15y


3x2 + 10x − y

Answer 1

So its B

Explanation:

Combine like terms

2 − 8 + 3 2 + 7 − 1 2

2 − + 3 2 − 1 2

2 − + 3 2 − 1 2

− 1 0 − + 3 2

Rearrange terms

− 1 0 − + 3 2

3 2 − 1 0 −

Solution

3x2 − 10x − y

Answer 2

2x-8y+3x^2+7y-12x

COMBINE LIKE TERMS

3x²+(2x-12x)+(-8y+7y)

ADD LIKE TERMS

3x^2-10x-y

Therefore the answer is the 2nd option: 3x^2-10x-y