the length of a rectangle is 3cm more than its width. if the area is 54cm², find the dimensions of the rectangle. with step by steps
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the length of a rectangle is 3cm more than its width. if the area is 54cm², find the dimensions of the rectangle. with step by steps
NEED ANSWER ASAP!
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Answer
The dimensions are 6 and 9
Step-by-step explanation:
(3+x)(x)=54
X²+3x-54=0
(X+9)(x-6)
X=-9 X=6
Since -9 doesnt work lets go for 6
(3+6)(6)=54
(9)(6)=54
So that mean x=6 which is the width and 3+x=9 which is the length