Answer:
88x + 9
Step-by-step explanation:
The answer is <span>A –x^2 + 3x + 15
</span>
3x² + 6 – 2x + 5x – 4x²<span> + 9
Rearrange it:
</span>3x² + 6 – 2x + 5x – 4x² + 9
= 3x² - 4x² - 2x + 5x + 6 + 9
= -x² + 3x + 15
8 - 2 = 6
6 - 1 = 5
9 x 5 = 45
Area: 3.14*10*10
=314
Perimeter: 3.14*20
=62.8
