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Simplifying
-4p2 + 9 = 0
Reorder the terms:
9 + -4p2 = 0
Solving
9 + -4p2 = 0
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 = 0 + -9
Combine like terms: 9 + -9 = 0
0 + -4p2 = 0 + -9
-4p2 = 0 + -9
Combine like terms: 0 + -9 = -9
-4p2 = -9
Divide each side by '-4'.
p2 = 2.25
Simplifying
p2 = 2.25
Take the square root of each side:
p = {-1.5, 1.5}
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