ANSWER

EXPLANATION
The given polynomials are:

and

We want to subtract these two polynomials.

Expand the right hand side to obtain:

Group the similar terms:

Combine the similar terms to get:

Answer:
A = 9x² + 12x
Step-by-step explanation:
The area (A) of the rectangle is calculated as
A = height × width
= 3(3x² + 4x) ← distribute parenthesis by 3
= 9x² + 12x
B) If y is the additive identity is 0
Answer:

Step-by-step explanation:
First, remember that the maximum degree of an angle totals 360°.
Since we already have 294°, this means that what is left must total
.
Therefore, this means that our two smaller angles must equal 66°. So:

Solve for x. Add on the left:

Subtract 8 from both sides. Therefore, the value of x is:

August 22, September 22, October 22, November 22
3 Months later would be November 22