SOLUTION: the dimensions of a rectangle are 2x+1 and x-1 if each dimensions are increased by 2 units write and simplify an expression that reprsents an increase in area

Algebra ->  Rectangles -> SOLUTION: the dimensions of a rectangle are 2x+1 and x-1 if each dimensions are increased by 2 units write and simplify an expression that reprsents an increase in area      Log On


   

Question 1049062: the dimensions of a rectangle are 2x+1 and x-1 if each dimensions are increased by 2 units write and simplify an expression that reprsents an increase in area
Found 2 solutions by LinnW, MathLover1:
Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
Add 2 to each dimensions
2x+1+2 = 2x+3
x-1+2 = x+1
Multiply the two dimensions
(x+1)(2x+3)
2x%5E2%2B3x%2B2x%2B3
2x%5E2%2B5x%2B3

Answer by MathLover1(20855) About Me  (Show Source):
You can put this solution on YOUR website!
the dimensions of a rectangle are 2x%2B1 and x-1
%282x%2B1%29%28x-1%29
2x%5E2-2x%2Bx-1
2x%5E2-x-1->the area before dimensions are increased

if each dimensions are increased by 2 units, we have
2x%2B1%2B2 and x-1%2B2
2x%2B3 and x%2B1
the area is:
%282x%2B3%29%28x%2B1%29
2x%5E2%2B2x%2B3x%2B3
2x%5E2%2B5x%2B3 ->expression that represents increase in area