x^3+ax^2+4x-8=0

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Solution for x^3+ax^2+4x-8=0 equation:


Simplifying
x3 + ax2 + 4x + -8 = 0

Reorder the terms:
-8 + ax2 + 4x + x3 = 0

Solving
-8 + ax2 + 4x + x3 = 0

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + ax2 + 4x + 8 + x3 = 0 + 8

Reorder the terms:
-8 + 8 + ax2 + 4x + x3 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + ax2 + 4x + x3 = 0 + 8
ax2 + 4x + x3 = 0 + 8

Combine like terms: 0 + 8 = 8
ax2 + 4x + x3 = 8

Add '-4x' to each side of the equation.
ax2 + 4x + -4x + x3 = 8 + -4x

Combine like terms: 4x + -4x = 0
ax2 + 0 + x3 = 8 + -4x
ax2 + x3 = 8 + -4x

Add '-1x3' to each side of the equation.
ax2 + x3 + -1x3 = 8 + -4x + -1x3

Combine like terms: x3 + -1x3 = 0
ax2 + 0 = 8 + -4x + -1x3
ax2 = 8 + -4x + -1x3

Divide each side by 'x2'.
a = 8x-2 + -4x-1 + -1x

Simplifying
a = 8x-2 + -4x-1 + -1x

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