Question 831837: solve using the square root property : (x+9)^2=24
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
(x + 9)^2 = 24
(x + 9)(x + 9) = 24
xx + 18x + 81 = 24
xx + 18x + 57 = 0
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the above quadratic equation is in standard form, with a=1, b=18, and c=57
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to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 18 57
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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answer:
x = -4.10102051
x = -13.8989795
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