I need help in solving this problem involving definite integrals in calculus. The correct answer is A) 64, but I need to know how it was done. Can you please show the steps in solving this? I need to correct my mistake.

Thanks in advance!

A) 64

Step-by-step explanation:

Integral of f(x+2) is the same as integral of f(x) with limits x+2

Integral of f(x-2) is the same as integral of f(x) with limits x-2

Intrtralof 3x² is x³

3(7) - 5(2) + [4³ - 1]

21 - 20 + 63 = 64

x = 17

step-by-step explanation:

in the given figure, two triangles are inscribed in a circle where ∠bae ≅ ∠dae which makes the side be and de equal so we can write it as:

3x - 24 = x + 10

solving this equation for x to get:

3x - x = 10 + 24

2x = 34

x = 34/2

x = 17

therefore, the value of x = 17.

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315