p^3-7p^2+3P-21=0

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Solution for p^3-7p^2+3P-21=0 equation:


Simplifying
p3 + -7p2 + 3P + -21 = 0

Reorder the terms:
-21 + 3P + -7p2 + p3 = 0

Solving
-21 + 3P + -7p2 + p3 = 0

Solving for variable 'P'.

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

Add '21' to each side of the equation.
-21 + 3P + -7p2 + 21 + p3 = 0 + 21

Reorder the terms:
-21 + 21 + 3P + -7p2 + p3 = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 3P + -7p2 + p3 = 0 + 21
3P + -7p2 + p3 = 0 + 21

Combine like terms: 0 + 21 = 21
3P + -7p2 + p3 = 21

Add '7p2' to each side of the equation.
3P + -7p2 + 7p2 + p3 = 21 + 7p2

Combine like terms: -7p2 + 7p2 = 0
3P + 0 + p3 = 21 + 7p2
3P + p3 = 21 + 7p2

Add '-1p3' to each side of the equation.
3P + p3 + -1p3 = 21 + 7p2 + -1p3

Combine like terms: p3 + -1p3 = 0
3P + 0 = 21 + 7p2 + -1p3
3P = 21 + 7p2 + -1p3

Divide each side by '3'.
P = 7 + 2.333333333p2 + -0.3333333333p3

Simplifying
P = 7 + 2.333333333p2 + -0.3333333333p3

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