Answer:
a) (x + 2)(3x + 1) = x^2 + 7x + 2
b) (2x - 3)(2x + 4) = 4x^2 + 2x - 12
c) (x + 2)(avg. length of base, x + 6) = x^2 + 8x + 12
d) Is the radius 4x + 12? If so: (4x + 12)(4x + 12) = (16x^2 + 96x + 144) x pi
Step-by-step explanation:
Brainliest, please!
