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3 years ago

Factor: m^2 - 20m - 21

Mathematics

1 answer:

Anton [14]3 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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makvit [3.9K]

Answer:

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Step-by-step explanation:

Given that

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Now we can find this by substituting g= $5 \frac{1}{2}$ in the the above equation representing number of kilometers traveled by the car.

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ohaa [14]

Answer:

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Step-by-step explanation:

Given

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Required

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