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2 years ago

Factor: m^2 - 20m - 21

Mathematics

1 answer:

Anton [14]2 years ago

4 0

Answer: (m-21)(m+1)

Step-by-step explanation:

To factor this trinomial, find two numbers that multiply to -21 and add to -20:

(-21)(1)=-21

-21+1=-20

They are -21 and 1.

Add -21 and 1 to m to get both factors:

(m+(-21)) and (m+1)

(m-21) and (m+1)

Multiply them to get the answer:

(m-21)(m+1)

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3 years ago

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3 years ago

How do I solve for x?

notka56 [123]

Solving:
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<span>Replace denominators and resolve:
</span> $\frac{3+4x}{2} + \frac{5-x}{3} = \frac{29}{6}$
$\frac{3(3+4x)}{6} + \frac{2(5-x)}{6} = \frac{29}{6}$
Cancel the dominators
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$\boxed{\boxed{x = 1}}\end{array}}\qquad\quad\checkmark$

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2 years ago

What is the answer plz 2+8-4•7

iris [78.8K]

2+8-4x7
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3 years ago

Read 2 more answers