Answer:
B=9 (I'll solve right now, just so you get the answer)
Step-by-step explanation:
Expand right side by distributing
Use the FOIL method to simplify (first, outside, inside, last):
Simplify
Re-insert
Cancel out
Move all terms to one side
Simplify
Factor out the common term 2
Answer:
<em>A(x) = 6x² + 26x </em>
Step-by-step explanation:
A(x) = 4x ( x + 10 ) - 2x ( 8 ) + +
A(x) = 4x² + x² + x² + 40x - 16x + 2x
<em>A(x) = 6x² + 26x</em>
Step-by-step explanation: