-9-4p^2=-42

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Solution for -9-4p^2=-42 equation:


Simplifying
-9 + -4p2 = -42

Solving
-9 + -4p2 = -42

Solving for variable 'p'.

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

Add '9' to each side of the equation.
-9 + 9 + -4p2 = -42 + 9

Combine like terms: -9 + 9 = 0
0 + -4p2 = -42 + 9
-4p2 = -42 + 9

Combine like terms: -42 + 9 = -33
-4p2 = -33

Divide each side by '-4'.
p2 = 8.25

Simplifying
p2 = 8.25

Take the square root of each side:
p = {-2.872281323, 2.872281323}

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