Solve for h
h=8.4
h=-8.4
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588\times 4.8=4\times 10h^{2}
Multiply both sides by 4.8.
2822.4=4\times 10h^{2}
Multiply 588 and 4.8 to get 2822.4.
2822.4=40h^{2}
Multiply 4 and 10 to get 40.
40h^{2}=2822.4
Swap sides so that all variable terms are on the left hand side.
h^{2}=\frac{2822.4}{40}
Divide both sides by 40.
h^{2}=\frac{28224}{400}
Expand \frac{2822.4}{40} by multiplying both numerator and the denominator by 10.
h^{2}=\frac{1764}{25}
Reduce the fraction \frac{28224}{400} to lowest terms by extracting and canceling out 16.
h=\frac{42}{5} h=-\frac{42}{5}
Take the square root of both sides of the equation.
588\times 4.8=4\times 10h^{2}
Multiply both sides by 4.8.
2822.4=4\times 10h^{2}
Multiply 588 and 4.8 to get 2822.4.
2822.4=40h^{2}
Multiply 4 and 10 to get 40.
40h^{2}=2822.4
Swap sides so that all variable terms are on the left hand side.
40h^{2}-2822.4=0
Subtract 2822.4 from both sides.
h=\frac{0±\sqrt{0^{2}-4\times 40\left(-2822.4\right)}}{2\times 40}
This equation is in standard form: ax^{2}+bx+c=0. Substitute 40 for a, 0 for b, and -2822.4 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
h=\frac{0±\sqrt{-4\times 40\left(-2822.4\right)}}{2\times 40}
Square 0.
h=\frac{0±\sqrt{-160\left(-2822.4\right)}}{2\times 40}
Multiply -4 times 40.
h=\frac{0±\sqrt{451584}}{2\times 40}
Multiply -160 times -2822.4.
h=\frac{0±672}{2\times 40}
Take the square root of 451584.
h=\frac{0±672}{80}
Multiply 2 times 40.
h=\frac{42}{5}
Now solve the equation h=\frac{0±672}{80} when ± is plus. Reduce the fraction \frac{672}{80} to lowest terms by extracting and canceling out 16.
h=-\frac{42}{5}
Now solve the equation h=\frac{0±672}{80} when ± is minus. Reduce the fraction \frac{-672}{80} to lowest terms by extracting and canceling out 16.
h=\frac{42}{5} h=-\frac{42}{5}
The equation is now solved.
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