x^3+px^2+15x-9=0

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Solution for x^3+px^2+15x-9=0 equation:


Simplifying
x3 + px2 + 15x + -9 = 0

Reorder the terms:
-9 + px2 + 15x + x3 = 0

Solving
-9 + px2 + 15x + x3 = 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 + px2 + 15x + 9 + x3 = 0 + 9

Reorder the terms:
-9 + 9 + px2 + 15x + x3 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + px2 + 15x + x3 = 0 + 9
px2 + 15x + x3 = 0 + 9

Combine like terms: 0 + 9 = 9
px2 + 15x + x3 = 9

Add '-15x' to each side of the equation.
px2 + 15x + -15x + x3 = 9 + -15x

Combine like terms: 15x + -15x = 0
px2 + 0 + x3 = 9 + -15x
px2 + x3 = 9 + -15x

Add '-1x3' to each side of the equation.
px2 + x3 + -1x3 = 9 + -15x + -1x3

Combine like terms: x3 + -1x3 = 0
px2 + 0 = 9 + -15x + -1x3
px2 = 9 + -15x + -1x3

Divide each side by 'x2'.
p = 9x-2 + -15x-1 + -1x

Simplifying
p = 9x-2 + -15x-1 + -1x

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