Answer:

Step-by-step explanation:
2x² + 5x + 3 = (x + 1) (2x + 3)
x² + 2x + 1 = (x + 1) (x + 1)
(x + 1) cancels out because there is one in the denominator and the numerator, leaving you with the answer.
Hope this helps!
your calculations for volume (pi x r^2 × h) and surface area (2 × pi × r (h+r)) are correct. However your ratio are incorrect. From the formulas the ratio of surface area to volume would be r×h:2(h+r)
Answer:
216 ft³
Step-by-step explanation:
h*w*l=v

Answer:
43.5
Step-by-step explanation:
43.5*2=87+3=90
X=1. if 1 to the second power=1 and four times 1=4, 1+4-5=0.