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MATH SOLVE
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The square of a positive number decreased by 4 times the number is 12. Find the positive number. [On...
4 months ago
Q:
The square of a positive number decreased by 4 times the number is 12. Find the positive number. [Only an algebraic solution will be accepted.]
Accepted Solution
A:
The math translation is: x^2-4x=12
So then you can subtract 12 from both sides and solve as a quadratic equation.
X^2-4x-12=0
This factors into:
(X-6)(x+2)=0.
So then the answer would be 6 or -2.