2 years ago

I'm having trouble solving this, if anyone could help I'd be most appreciated.

Mathematics

1 answer:

STALIN [3.7K]2 years ago

5 0

You can check that
f(1)=0
f(-3)=0
f(-5)=0

thus:
$x^3+7x^2+7x-15=\boxed{(x-1)(x+3)(x+5)}$

You might be interested in

Find the number of sides of a regular polygon if one interior angle is 120 degrees.

saul85 [17]

Each Interior Angle = 180 -(360 / # sides)
120 = 180 - (360 / # sides)
(360 / # sides) = 60
# sides = 360 / 60
# sides = 6

8 0

3 years ago

*PLEASE HELP ASAP ITS A TEST* How many solutions does the system of linear equations represented in the graph below have?

Ipatiy [6.2K]

Answer:

Step-by-step explanation:

The 2 lines never intersect so there are 0 solutions

6 0

3 years ago

(2x-7)-(4x^2+6x-3)+(x^2+4)

masha68 [24]

Answer:

$-3x^2-4x$

Step-by-step explanation:

Simplify:

$\left(2x-7\right)-\left(4x^2+6x-3\right)+\left(x^2+4\right)$

$=2x-7-\left(4x^2+6x-3\right)+x^2+4$

Group same factor:

$=-\left(4x^2+6x-3\right)+x^2+2x-7+4$

Add :

$=-\left(4x^2+6x-3\right)+x^2+2x-3$

Apply the distributive law: -(a+b) = -a - b

$-\left(4x^2+6x-3\right)=-4x^2-6x+3$

$=-4x^2-6x+3+x^2+2x-3$

Group same factor:

$=-4x^2+x^2-6x+2x+3-3$

Subtract:

$=-4x^2+x^2-6x+2x$

Add:

$=-3x^2-6x+2x$

Group same factor:

$=-3x^2-4x$

Hence answer = $-3x^2-4x$

<u><em>~lenvy~</em></u>

8 0

2 years ago

If a vertical line passes through a graph only once the relation is considered to be a function. True or false?

kotykmax [81]

This is True -----------

6 0

2 years ago

Read 2 more answers

Identify the percent of change as an increase or a decrease. Then find the percent of change. Round to the nearest tenth of a pe

Aleksandr-060686 [28]

42.5/68
=0.625x100
=62.5%

7 0

3 years ago