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\frac{65+78+96}{54}xx=3240
Multiply both sides of the equation by 60.
\frac{143+96}{54}xx=3240
Add 65 and 78 to get 143.
\frac{239}{54}xx=3240
Add 143 and 96 to get 239.
\frac{239}{54}x^{2}=3240
Multiply x and x to get x^{2}.
x^{2}=3240\times \frac{54}{239}
Multiply both sides by \frac{54}{239}, the reciprocal of \frac{239}{54}.
x^{2}=\frac{3240\times 54}{239}
Express 3240\times \frac{54}{239} as a single fraction.
x^{2}=\frac{174960}{239}
Multiply 3240 and 54 to get 174960.
x=\frac{108\sqrt{3585}}{239} x=-\frac{108\sqrt{3585}}{239}
Take the square root of both sides of the equation.
\frac{65+78+96}{54}xx=3240
Multiply both sides of the equation by 60.
\frac{143+96}{54}xx=3240
Add 65 and 78 to get 143.
\frac{239}{54}xx=3240
Add 143 and 96 to get 239.
\frac{239}{54}x^{2}=3240
Multiply x and x to get x^{2}.
\frac{239}{54}x^{2}-3240=0
Subtract 3240 from both sides.
x=\frac{0±\sqrt{0^{2}-4\times \frac{239}{54}\left(-3240\right)}}{2\times \frac{239}{54}}
This equation is in standard form: ax^{2}+bx+c=0. Substitute \frac{239}{54} for a, 0 for b, and -3240 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
x=\frac{0±\sqrt{-4\times \frac{239}{54}\left(-3240\right)}}{2\times \frac{239}{54}}
Square 0.
x=\frac{0±\sqrt{-\frac{478}{27}\left(-3240\right)}}{2\times \frac{239}{54}}
Multiply -4 times \frac{239}{54}.
x=\frac{0±\sqrt{57360}}{2\times \frac{239}{54}}
Multiply -\frac{478}{27} times -3240.
x=\frac{0±4\sqrt{3585}}{2\times \frac{239}{54}}
Take the square root of 57360.
x=\frac{0±4\sqrt{3585}}{\frac{239}{27}}
Multiply 2 times \frac{239}{54}.
x=\frac{108\sqrt{3585}}{239}
Now solve the equation x=\frac{0±4\sqrt{3585}}{\frac{239}{27}} when ± is plus.
x=-\frac{108\sqrt{3585}}{239}
Now solve the equation x=\frac{0±4\sqrt{3585}}{\frac{239}{27}} when ± is minus.
x=\frac{108\sqrt{3585}}{239} x=-\frac{108\sqrt{3585}}{239}
The equation is now solved.