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3 years ago

15

The expression 2(l + w) represents the perimeter of a rectangle with length l and width w.

1 answer:

Alchen [17]3 years ago

3 0

<span>A. The variable 2 is being multiplied by (l + w).

After "l" and "w" are added together, they are multiplied to 2, or in this case, since you do not know what the l and w equals, 2 is being distributed to the two, and so it would look like

2(l + w) = 2l + 2w

hope this helps</span>

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Which polynomial expression represents a sum of cubes? (6 – s)(s2 + 6s + 36) (6 + s)(s2 – 6s – 36) (6 + s)(s2 – 6s + 36) (6 + s)

Nadusha1986 [10]

Answer:

Option 3 is correct that is $(6+s)(s^2-6s+36)$

Step-by-step explanation:

We have general formula for sum of cube which is

$a^3+b^3=(a+b)(a^2+b^2-ab)$

Here, we have a=s and b=6

on substituting the values in the formula we will get

$6^3+s^3=(6+s)(s^2+6^2-6s)$

After simplification we will get

$6^3+s^3=(6+s)(s^2+36-6s)$

After rearranging the terms we will get

$6^3+s^3=(6+s)(s^2-6s+36)$ which exactly matches option 3 in the given options.

Therefore, option 3 is correct that is $(6+s)(s^2-6s+36)$

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4 years ago

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Answer:

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Step-by-step explanation:

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