Answer:
the answer would be B the answer would be B
81k^2 - m^2 factors to
(9k + m)(9k - m)
Prove this by FOILing.
First - 81k^2
Outer - (-9km)
Inner - 9km
Last - (-m^2)
Put it into equation form
81k^2 - 9km + 9km - m^2
And combine terms to get the original equation,
81k^2 - m^2.
⭐ Answered by Hyperrspace (Ace) ⭐
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Answer:
Step-by-step explanation:
PL^2 =7^2 +3^2
PL^2=49+9
PL=
Hope it will help u........
48 is the perimeter, all sides in a square are equal, you take 12 * 4 which gives you 48.
For the area, you take two sides, length and width, and you multiply them, 12 * 12, this gives you 144.
