Question

Can someone explain to me how the right equation simplifies into the left equation.

Answer 1

\[-30\pm \sqrt{30^{2}+20(60-h}/-10........3\pm \sqrt{3^{2}+.2(60-h)}\]

Answer 2

Sorry left equation into the right equation

Answer 3

-30 / -10 = 3

For the second part, take -10 into the square root, by squaring -10 which becomes 100.
30^2 / 100 = 30*30/100 = (3^2 * 10^2) / 10^2
20(60-h) / 100 = 0.2(60-h)

Answer 4

Thank you

Answer 5

You are welcome.