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
podryga [215]
3 years ago
9

Factorise 3(x+2)^2-10(x+2)+3

Mathematics
1 answer:
Likurg_2 [28]3 years ago
3 0
The answer is (x - 1)(3x + 5)


Let's substitute (x + 2) with a:
3(x + 2)² - 10(x + 2) + 3 = 3a² - 10a + 3 =
                                      = 3a² - 9a - a + 3 = 
                                      = 3a * a - 3a *3 - (a - 3) = 
                                      = 3a(a - 3) - (a - 3) =
                                      = (a - 3)(3a - 1)

Now, substitute a with x + 2:
(a - 3)(3a - 1) = (x + 2 - 3)(3(x + 2) - 1) = 
                     = (x - 1)(3x + 6 - 1) =
                     = (x - 1)(3x + 5)
You might be interested in
How u can convert decimal to a fraction in .23?
Vlada [557]

23

%

=

23

100

=

0.23

First we have to think that the symbol

%

=

1

100

so that

23

%

=

23

⋅

(

1

100

)

this is read twenty three percent is equal to twenty three multiplied by one divided by one hundred.

the result is the fraction

23

100

Now, to convert to decimal, simply divide 23 by 100

23

÷

10

=

2.3


and

2.3

÷

10

=

0.23

this is the same as

23

÷

100

=

0.23

4 0
3 years ago
Domain:<br> Range:<br> HELP I BEG
dalvyx [7]
Well if the cubic unit is one, then we can assume that the domain is -1<0
7 0
3 years ago
Convert 15.5 feet to<br>meters. ​
frutty [35]

Step-by-step explanation:

15.5 feet to meter =4.7244

5 0
3 years ago
Given cot A = 5/6 and that angle A is in Quadrant I, find the exact value of csc A in
Lerok [7]

Answer: well search It up 1/10

Step-by-step explanation:

8 0
3 years ago
Dominic and Tyler collected soda cans to raise money. Dominic collected 700 cans and Tyler collected 7000 cans. The number of ca
Crank
It should be ten times greater since,

700x10=7000

So ten times greater.
4 0
3 years ago
Other questions:
  • What is 25 hundreds 4 tens 12 ones in standard form
    9·2 answers
  • 8=2 missing exponent
    13·1 answer
  • What is the selling price of a $12,543 boat if a $758 discount is given?
    5·1 answer
  • The time for a professor to grade an exam is normally distributed with a mean of 16.3 minutes and a standard deviation of 4.2 mi
    11·1 answer
  • Matt says he can find the sum of 45+50 without rewriting it. Explain how you can solve this problem using mental math.
    12·2 answers
  • What is 4^6 . 4^6 please help​
    13·1 answer
  • Is it okay to eat 8 day used by bread that been left in the refrigherater
    15·1 answer
  • Solve 729 s-⁵ = 3² (1-s) for S.​
    5·1 answer
  • Solve the inequality <br> -d/15 -9&lt;1
    5·1 answer
  • Simplify the fraction
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!