2 years ago

4r3 +8r2 −5r−10? It = to (r+2)x(4r^2-5)

Mathematics

1 answer:

tangare [24]2 years ago

7 0

Answer:

4r^3+8r^2-5r-10

= 4r^2(r+2)-5(r+2) [Factorise out like terms; distributive law of multiplication to check]

=(4r^2-5)(r+2) [Combine expressions]

You might be interested in

Heeelp the first choices are linear or non linear the second is increasing or decreasing

slega [8]

It’s non linear and it’s decreasing

5 0

3 years ago

Help me please..!!!!

wariber [46]

I think it is D but i am not too sure

3 0

3 years ago

Amy hikes down a slope to a lake that is 10.2 meters below the trail. Then Amy jumps into the lake, and swims 1.5 meters down. S

Grace [21]

she went down the slope 10.2 meters, -10.2

then she jumped down to the lake 1.5 meters, -1.5

-10.2 - 1.5 = -11.7 meters.

so she pretty much went 11.7 meters down from her original location.

7 0

3 years ago

Read 2 more answers

Solve for x -2^2(-5x+10)=100

masha68 [24]

Answer:

$x=7$

Step-by-step explanation:

Hi there!

$-2^2(-5x+10)=100$

Solve -2^2:

$-4(-5x+10)=100$

Divide both sides by -4:

$\displaystyle \frac{ -4(-5x+10)}{-4}=\frac{100}{-4} \\\\-5x+10=-25$

Subtract 10 from both sides:

$-5x+10-10=-25-10\\-5x=-35$

Divide both sides by -5:

$\displaystyle \frac{-5x}{-5} = \frac{-35}{-5} \\\\x=7$

Therefore, x = 7.

I hope this helps!

3 0

3 years ago

"the value of x is:" 1) 7 2) 7√3 3) 14 4) 14√3 5) 7√2

gizmo_the_mogwai [7]

Answer:

the base/width is 7

Step-by-step explanation:

it is 7 because it is half the length from corner to corner

5 0

3 years ago