SOLUTION: A parallelagram x+1=a and 2x+1 = b area = 45 square units find its base and hight and check answers show all work Please help??

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Question 162530This question is from textbook Biginning Algebra
: A parallelagram x+1=a and 2x+1 = b
area = 45 square units
find its base and hight and check answers
show all work
Please help?? This question is from textbook Biginning Algebra

Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
A=bh
A= 45
a=x+1
b=2x+1
=============
45=(x+1)(2x+1)
2x%5E2%2B3x%2B1=45
2x%5E2%2B3x-44=0
(2x+11)(x-4)=0
2x+11=0
2x=-11 - can't have a negative side
x=-11/2
x-4=0
x=4 - answer
Check;
2%284%29%5E2%2B3%284%29%2B1=45
32+12+1=45
:)