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3241004551 [841]
3 years ago
8

If the dimensions of a rectangle are A plus 3b and A minus 3b what is the area of the rectangle

Mathematics
1 answer:
tresset_1 [31]3 years ago
5 0

area=legnth times width

we notice this is a special case

(a+b)(a-b)=a^2-b^2

area=(a+3b)(a-3b)=a^2-9b^2

area=a^2-9b^2

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