You combine both 2x-12 and x+2 and 11 which makes the equation
2x-12+x+2= 11
The you get your answer which is
X=7
ANSWER
b=11
EXPLANATION
The given quadratic equation is

We expand to get:

We simplify further by combining the x terms.

This is the standard form.
Comparing to

We have b=11
Answer:

Step-by-step explanation:
We want to evaluate:

for x=-2 and y=-4.
We substitute to get:

We now simplify to get:



Yes it is. Hope it helps.:)