To find the value of S, we substitute the value of r into the equation S = 4π * r^2.
S = 4π * (2x + 5)^2
Now we can simplify this equation further. We first expand the square:
S = 4π * (4x^2 + 20x + 25)
Next, we distribute the 4π:
S = 16πx^2 + 80πx + 100π
Therefore, the value of S is 16πx^2 + 80πx + 100π.
Q6 If r = 2x + 5 Find the value of S, given
the equation S = 4pi * r ^ 2
1 answer