SOLUTION: Please help me solve this word problem: A parallelogram has a base of length 2x+1 and a height of x+3 and has an area of 42 square units. Find the base and height of the paralle

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Question 132687: Please help me solve this word problem:
A parallelogram has a base of length 2x+1 and a height of x+3 and has an area of 42 square units. Find the base and height of the parallelogram. (A=BH)
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
(2X+1)(X+3)=42
2X^2+X+6X+3=42
2X^2+7X+3-42=0
2X^2+7X-39=0
(2X+13)(X-3)=0
X-3=0
X=3 ANSWER FOR THE UNKNOWN VALUE
PROOF:
(2*3+1)(3+3)=42
7*6=42
42=42