Straight

Right-

x = 7

Type: Infinite Discontinuity.

(b)

y = x(x + 4)(x - 2)    | distribute

y = x(x² - 2x + 4x - 8)

y = x(x² + 2x - 8)      | distribute

y = x³ + 2x² - 8x

now use integration

\(\int (x^3+2x^2-8x)dx\)

now do it yourself.

(a)

Because the curve C in Figure 3 crosses the x-axis at points A and B, the solutions of the equation are A and B:

y = x(x + 4)(x - 2)

0 = x(x + 4)(x - 2) ...

now solve for x -> x₁ = 0, x₂ = -4 and x₃ = 2

We already know A or B are not zero,

so A = -4 (because A is negative) and B = 2 (because B is positive).

1 1/2 cents = 1.5 cents 

Round up if 1.A (A is a digit 0-9) applies where A > 4.
Round down if 1.B (B is a digit 0-9) applies where B > 5.

so 1.5 cents ≈ 2 cents, like Guest said.

\(\sqrt{\frac{25}{4}} = \frac{\sqrt{25}}{\sqrt{4}} = {\color{blue}\frac{5}{2} = 2 \frac{1}{2}}\)

!!

3/5 of x = 24 solve for x

24 : 3/5 = 24/1 : 3/5 = 24/1 * 5/3 = 40.

so x = 40 - 3/5 of 40 = 24.

I do not understand the question.

Cannot you just type it in the calculator?

exactly.