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3 years ago

8m^3 - 28m^2 + 6m - 21. You solve by factoring by grouping!!! quick please

Mathematics

1 answer:

Leya [2.2K]3 years ago

4 0

Answer:

$(2m - 7)(4 {m}^{2} + 3)$

Step-by-step explanation:

$8m^3 - 28m^2 + 6m - 21 \\ = 4 {m}^{2} (2 {m} - 7) + 3(2m - 7) \\ = (2m - 7)(4 {m}^{2} + 3)$

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2/3 (x + 13) =22<br><br>what is x ?

butalik [34]

22÷2/3 =33.000000003-13=20.000000003 (about 20)

check:
20+13=33
33x2/3=22

answer: x=20

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4 years ago

3. *

Sati [7]

Answer:

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3 years ago

First to answer gets brainliest

olganol [36]

Answer:

y = 4x - 9

Step-by-step explanation:

Take 2 points:

(0,-9) and (4,7)

Find the slope:

(7 - (-9))/(4 - 0)

16/4 = 4

so we have y = 4x + b

Now find b:

Insert a point for y and x:

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8 0

3 years ago

Please help me asap

pentagon [3]

Answer:

No, it isn't linear because the graph is not a straight line.

Step-by-step explanation:

(see picture of graph)

Linear means a straight line, and these points do not form a line, so it is not linear. You can also calculate this by finding the slope between each point and the previous.

8 0

3 years ago

Read 2 more answers

Given b(x) = [X+41, what is b(-10)?

scoundrel [369]

B(x) = x + 41

B(-10) = -10 + 41

B(-10) = 31 [Answer]

5 0

3 years ago