Question 936690: area rectangle = 2xx + 7x -15
if one side is represented by x+5, show the expression in x for the other side. Found 3 solutions by stanbon, TimothyLamb, MathTherapy:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! area rectangle = 2xsq + 7x -15 (that is 2x squared)
one side is represented by x+5, Q is show expression in x for the other?
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Divide 2x^2+7x-15 by x+5
Using synthetic division get::
-5)....2....7....-15
.......2...-3....|..0
Ans: (2x^2+7x-15) / (x+5) = 2x-3 (other side)
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Cheers,
Stan H.
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You can put this solution on YOUR website! 2xx + 7x - 15 = 0
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the above quadratic equation is in standard form, with a=2, b=7 and c=-15
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to solve the quadratic equation, by using the quadratic formula, copy and paste this:
2 7 -15
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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the quadratic has two real roots at:
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x = 1.5
x = -5
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expressions for the two sides:
x + 5
x - 1.5
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answer:
x - 1.5
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You can put this solution on YOUR website!
area rectangle = 2xx + 7x -15
if one side is represented by x+5, show the expression in x for the other side.
------ Factoring numerator ------ Cancelling
Other side:
(