F(x)=-42(x-20)2+16800

Solution for F(x)=-42(x-20)2+16800 equation:

Simplifying
F(x) = -42(x + -20) * 2 + 16800

Multiply F * x
xF = -42(x + -20) * 2 + 16800

Reorder the terms:
xF = -42(-20 + x) * 2 + 16800

Reorder the terms for easier multiplication:
xF = -42 * 2(-20 + x) + 16800

Multiply -42 * 2
xF = -84(-20 + x) + 16800
xF = (-20 * -84 + x * -84) + 16800
xF = (1680 + -84x) + 16800

Reorder the terms:
xF = 1680 + 16800 + -84x

Combine like terms: 1680 + 16800 = 18480
xF = 18480 + -84x

Solving
xF = 18480 + -84x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '84x' to each side of the equation.
84x + xF = 18480 + -84x + 84x

Combine like terms: -84x + 84x = 0
84x + xF = 18480 + 0
84x + xF = 18480

Reorder the terms:
-18480 + 84x + xF = 18480 + -18480

Combine like terms: 18480 + -18480 = 0
-18480 + 84x + xF = 0

The solution to this equation could not be determined.