SOLUTION: Help please! State any restrictions on x. And solve for x.
5 2 7
- + - = -
3x x^2 9
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Question 264117: Help please! State any restrictions on x. And solve for x.
5 2 7
- + - = -
3x x^2 9
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
solve for x.
5 2 7
- + - = -
3x x^2 9
:
+ =
Multiply both sides by 9x^2, results
:
3x(5) + 9(2) = x^2(7)
:
15x + 18 = 7x^2
:
A quadratic equation
0 = 7x^2 - 15x - 18
:
Factors to:
(7x + 6)(x - 3) = 0
:
Two solutions
x = 3
and
7x = -6
x =
;
x cannot = 0
:
Check solution using x=3
+ =
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