Homework Help: math

Posted by Anonymous on Sunday, January 22, 2012 at 7:58pm.

Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.)
5x2 = 9x + 2

math - Jai, Sunday, January 22, 2012 at 8:31pm
5x^2 = 9x + 2
first we transpose all terms to the left side of the equation:
5x^2 - 9x - 2 = 0
then we factor (since it's factorable):
(5x + 1)(x - 2) = 0

5x + 1 = 0
5x = -1
x = -1/5
x - 2 = 0
x = 2

therefore,
x = -1/5 and x = 2

hope this helps~ XD

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