SOLUTION: the length of a retangular phtotgraph is 6 cm more than its width. The area is 55 cm. Find the demensions

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: the length of a retangular phtotgraph is 6 cm more than its width. The area is 55 cm. Find the demensions      Log On


   

Question 875081: the length of a retangular phtotgraph is 6 cm more than its width. The area is 55 cm. Find the demensions
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
L length
w width
L=w+6
wL=55
Substitute.
w%28w%2B6%29=55
w%5E2%2B6w-55=0, factorable.