3 years ago

Factor x

" class="latex-formula">

Mathematics

2 answers:

boyakko [2]3 years ago

7 0

Ok done. Thank to me :>

allochka39001 [22]3 years ago

5 0

Step-by-step explanation:

$x^2-81=x^2-9^2=(x-9)(x+9)\\\\\text{Used}\\\\a^2-b^2=(a-b)(a+b)$

You might be interested in

Please someone help asap!

Mrrafil [7]

The answer is A. You have to combine like terms

7 0

4 years ago

(a) Solve 7( k - 3 ) = 3k - 5

babymother [125]

A) $7(k-3)=3k-5\\ 7k-21=3k-5\\ 7k-3k=-5+21\\ 4k=16\\ k=\frac { 16 }{ 4 } \\ k=4$

b) $(2x+3)(x-8)\\ 2{ x }^{ 2 }-16x+3x-24\\ 2{ x }^{ 2 }-13x-24$

c) $\frac { 7-3f }{ 4 } =2\\ 7-3f=4\cdot 2\\ 7-3f=8\\ -3f=8-7\\ -3f=1\\ f=-\frac { 1 }{ 3 }$

7 0

4 years ago

Read 2 more answers

Which equation correctly shows the absoulte vaule of -8

olga2289 [7]

Answer:

|-8|=8

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is 1/8 of 3?<br> What is 3 groups of 1/8?<br> How many 3's are in 1/8?

zimovet [89]

Answer:

0.375 is 1/8 of 3. 3 groups of 1/8 is 3/8. 0 3's are in 1/8.

Step-by-step explanation:

8 0

3 years ago

Simplify the radical. sqrt32<br><br> 15 points to first ansewrer

Deffense [45]

Answer:

4 sqrt 2

Step-by-step explanation:

6 0

3 years ago