Do the split method, by splitting it in the middle

Factor 3x^3 + 4x^2 and -15x - 20 seperately

x^2 (3x + 4) - 5(3x + 4)

(x^2 - 5)(3x + 4) is your answer

hope this helps

7 0

3 years ago

A line passes through the point (-8,8) and has a slope of 5/4. Write the equation in slope- intercept form.

Murljashka [212]

Answer:

Step-by-step explanation:

Slope-intercept form: y = mx + b

m = slope = 5/4

b = y-intercept = 8

y = 5/4x + 8

3 0

3 years ago

Read 2 more answers

Find the distance between C and D on the number line c=3 and d=11

777dan777 [17]

Answer:

The distance between these two is 8.

Step-by-step explanation:

To find this, simply subtract the smaller from the larger.

11 - 3 = 8

4 0

4 years ago

What is the instataneous rate of change at x=2 of the function f given by f(x)= x^2-2÷x-1

Dima020 [189]

Answer:

4.5

Step-by-step explanation:

To find the instantaneous rate of chance, take the derivative:

$f(x) = {x}^{2} - \frac{2}{x} - 1 \\ \frac{d}{dx} f(x) = 2x + \frac{2}{ {x}^{2} }$

Remember to use power rule:

$\frac{d}{dx} {x}^{a} = a {x}^{a - 1}$

To differentiate -2/x, think of it as:

$- 2 {x}^{ - 1}$

Then, substitute 2 for x:

$2(2) + \frac{2}{ {2}^{2} } \\ 4 + \frac{2}{4} = 4.5$

6 0

3 years ago

Read 2 more answers