contestada

The area of a rectangle is 99 in.² the length of the rectangle is 2 inches longer than the width which is the width of a rectangle

Respuesta :

Area=l*b
99=(b+2)*b
99=b2+2b
B2+2b-99=0
B2+11b-9b-99=0
B(b+11)-9(b+11)=0
(b-9)(b+11)=0
B=9
L=11

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