If 2x + 4/x = 9, which equation is obtained after multiplying by x?
- 2x² + 4 = 9x
- 2x² + 9 = 4x
- 2x² + 9 = 4x
- x² + 4 = 9x
Explanation
Given:
2x + 4 /x =9
Multiply both sides by x:
x ( 2x + 4/x) = 9x
Now multiply each term:
2x^2 + 4x/x =9x
Since x/x =1
2x^2+4=9x
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