SOLUTION: What area of a parallelogram is ( x^2 + x - 12) and the length of its base is ( x + 4). What is the height of the parallelogram? I know the Area = bh , How to solve the height o

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: What area of a parallelogram is ( x^2 + x - 12) and the length of its base is ( x + 4). What is the height of the parallelogram? I know the Area = bh , How to solve the height o      Log On


   

Question 940865: What area of a parallelogram is ( x^2 + x - 12) and the length of its base is ( x + 4). What is the height of the parallelogram?
I know the Area = bh , How to solve the height of parallelogram if is in factor form?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+%28+x+%2B+4+%29%2A%28+x+-+3+%29+=+x%5E2+%2B+x+-+12+
Just treat the factors the same way as if they
were numbers
The base is +x%2B4+
The height is +x-3+
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You can check this by making a substitution
for +x+ that is greater than +4+
--------------------
+x+=+9+
+A+=+x%5E2+%2B+x+-+12+
+A+=+9%5E2+%2B+9+-+12+
+A+=+78+
base = +x+%2B+4+=+13+
height = +x+-+3+=+6+
+78+=+13%2A6+
+78+=+78+
OK