Factor this expression: ab + 4 + a + 4b

Mathematics

1 answer:

Makovka662 [10]4 years ago

4 0

Grouping method works best on this one:

ab+a+4+4b=a(b+1)+4(b+1)
=(a+4)(b+1)

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Math 7a using number sense to solve equations

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Simple...

you have: $\frac{n}{3} =12
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and

$\frac{n}{3} =-12$

To solve for.... $\frac{n}{3} =12$

Multiply to remove the denominator-->>

$3* \frac{n}{3} =12*3$

n=12*3

n=36

Then-->>>

$\frac{n}{3} =-12$

Do the same thing-->>

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