1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lord [1]
3 years ago
10

Is (x +1) a factor of f(x) = x3 + 2x2 −5x − 6 ? Yes No

Mathematics
2 answers:
sertanlavr [38]3 years ago
5 0

Answer:

Yes.

Step-by-step explanation:

You can find it out by factoring but ill do it easier way.

(x + 1 ) = 0 put the first and second equation to 0

x = -1

x³ + 2x² - 5x - 6 = 0  Now plug in the x in the equation

(-1)³ + 2(-1)² - 5(-1) - 6 = 0

0 = 0

so (x + 1) is a factor.

Firlakuza [10]3 years ago
5 0

Answer:

Yes

Step-by-step explanation:

If x + 1 is a factor

x = -1 should be a root

Check for the remainder:

(-1)³ + 2(-1)² −5(-1) − 6

0

Therefore it's a root, hence x+1 is a factor

You might be interested in
The sides of a cube are measured in whole centimeters. Which of the following could not be the cube's volume?
laila [671]
A: 100 cm³
This is because the others can be multiplied by something 3 times to get it, but A can not.

6 0
3 years ago
Read 2 more answers
Mr.Nelson bought a coat on sale for $27 less than third its original price . He paid $54. What was the original price?
MAVERICK [17]

Answer:

$243.

Step-by-step explanation:

We can use algebra here.

Let x = the original price.

Then  1/3 x - 27 = 54

1/3x = 54 + 27 = 81

x = 81 /  1/3

x = 81 * 3

x = $243  (answer).

6 0
3 years ago
Read 2 more answers
Find f(-3) if f(x) = x^2. <br> -9 <br> -6 <br> 6 <br> 9<br><br> It's not -6!!
mezya [45]
F(-3) = (-3)²
= -3 * -3
= 9
4 0
3 years ago
Read 2 more answers
(5x+1)(5x-1) combine terms
Alinara [238K]

Answer:

25x^2 -1

Step-by-step explanation:

If you multiply parentheses:

(5x*5x) + (5x*-1) + (1*5x) + (1*-1)

25x^2 - 5x + 5x -1

25x^2 -1

A simpler way is to memorize this formula

(Square1 - square2)= (sqrt of square1- sqrt of square2)*(sqrt of square1 + sqrt of sqaure2)

5 0
3 years ago
Please help &lt;3
Aleksandr [31]

Answer:

x =3

Step-by-step explanation:

3(4x + 4) = 2(5x+9) - 12

First step is to open the brackets by multiplying. It becomes

3×4x + 3×4 = 2×5x + 2×9 -12

12x + 12 = 10x + 18 - 12

Collecting like terms on the right hand side and left hand side of the equation, it becomes

12x -10x = 18 -12 -12

2x = -6

Negative sign on the right hand side of the equation overwhelms the positive sign on left hand side of the equation. It becomes

2x = -6

x = -6/2 = -3

Checking

3(4×-3 + 4) = 2(5×-3+9) - 12

-24 = -12-12= -24

So x = -3

3 0
3 years ago
Other questions:
  • What is FB? Please Explain the steps to find it.
    14·1 answer
  • Help are the answers right what are the others
    7·1 answer
  • Which expression is equivalent to 3 square 32x8y10?
    10·1 answer
  • May you run 7 miles in 50 minutes at the same rate how many miles would she run in 75 minutes​
    8·1 answer
  • 2x+5=11<br> How do you solve this
    14·2 answers
  • Find the value of p. p − 1 = 5 p + 3p − 8
    11·2 answers
  • Please help Me I gotta finish and no lying please. (NO LINKS)
    8·1 answer
  • Please help!! Geometry question<br> (see attachment)
    15·1 answer
  • The inspection division of the Lee County Weights and Measures Department is interested in estimating the actual amount of soft
    8·1 answer
  • X + y = 92 and y = 3x - 4
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!