Question

The length of a rectangle is 2 more than the width. The area is 15 square inches. Find the dimensions

Answer 1

L = W + 2
L*W = 15

Solve

Answer 2

You got it?

Answer 3

then if you really don't know how to solve it the second step is substitute the value of L to the second equation then solve for W.

Answer 4

i did: w+2+w=15. is that wrong? i keep getting bad answers

Answer 5

then the nxt is 2w= 15-2

Answer 6

W(W+2)=15
W^2 + 2W = 15
W^2 + 2W - 15 = 0
(W+5)(W-3) = 0
W = -5 or 3. Since it can't be negative:
W = 3
L = 5