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a=24\sqrt{2} a=-24\sqrt{2}
Take the square root of both sides of the equation.
a^{2}-1152=0
Subtract 1152 from both sides.
a=\frac{0±\sqrt{0^{2}-4\left(-1152\right)}}{2}
This equation is in standard form: ax^{2}+bx+c=0. Substitute 1 for a, 0 for b, and -1152 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
a=\frac{0±\sqrt{-4\left(-1152\right)}}{2}
Square 0.
a=\frac{0±\sqrt{4608}}{2}
Multiply -4 times -1152.
a=\frac{0±48\sqrt{2}}{2}
Take the square root of 4608.
a=24\sqrt{2}
Now solve the equation a=\frac{0±48\sqrt{2}}{2} when ± is plus.
a=-24\sqrt{2}
Now solve the equation a=\frac{0±48\sqrt{2}}{2} when ± is minus.
a=24\sqrt{2} a=-24\sqrt{2}
The equation is now solved.