All categories

3 years ago

Which of the following is a root of the polynomial shown below f(x)=x^3+2x^2-x-2

Mathematics

2 answers:

nevsk [136]3 years ago

6 0

Answer:

Roots: -1, 1, -2

Step-by-step explanation:

Aleks [24]3 years ago

3 0

F(x) = x^3 + 2x^2 - x - 2
f(x) = x^2(x + 2) - (x + 2) 
f(x) = (x^2 - 1)(x + 2) 
f(x) = (x + 1)(x - 1)(x + 2) 
Roots: -1, 1, -2

You might be interested in

Find the coordinates of the point 13 of the way from A to B.

Travka [436]

Answer:

The answer is 0, 1/3.

Step-by-step explanation:

This is because only at 0 does the line intersect through 1/3.

4 0

2 years ago

Find the midpoint of the segment with the given endpoints.

Ksju [112]

The mid-point for given endpoints is (4,3)

Step-by-step explanation:

a mid-point is the point on a line segment that divides it into two equal portions.

If (x1,y1) and (x2,y2) are the coordinates of vertices of a line segment, then mid-point is given by:

$M = (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$

given

(x1,y1) = (9,9)

(x2,y2) = (-1,-3)

$M = (\frac{9-1}{2}, \frac{9-3}{2})\\\\=(\frac{8}{2}, \frac{6}{2})\\\\=(4,3)$

The mid-point for given endpoints is (4,3)

Keywords: Coordinate Geometry, Mid-point

Learn more about coordinate geometry at:

#LearnwithBrainly

5 0

3 years ago

8 - 2x = 5(x - 2) which step is not part of solving the problem?

RUDIKE [14]

C. 8 - 2x = 5x - 2 is the anwser

7 0

3 years ago

Read 2 more answers

Which is the graph of linear inequality 6x + 2y > –10? NO PICTURES PLZZ

kvasek [131]

Answer:

y>-5-3x

Step-by-step explanation:

6 0

2 years ago

What is -5/4 to the 2nd power?

Vsevolod [243]

Answer:

$\frac{25}{16}$

Step-by-step explanation:

$(-\frac{5}{4})^2\\\\ \text {Apply power of a fraction rule: } (\frac{a}{b})^x=\frac{a^x}{b^x}\\\\(-\frac{5}{4})^2 = \frac{-5^2}{4^2}=\frac{25}{16}\\\\\boxed{(-\frac{5}{4})^2=\frac{25}{16}}$

8 0

3 years ago