y^4-12y^2+45=0

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Solution for y^4-12y^2+45=0 equation:


Simplifying
y4 + -12y2 + 45 = 0

Reorder the terms:
45 + -12y2 + y4 = 0

Solving
45 + -12y2 + y4 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + -12y2 + -45 + y4 = 0 + -45

Reorder the terms:
45 + -45 + -12y2 + y4 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -12y2 + y4 = 0 + -45
-12y2 + y4 = 0 + -45

Combine like terms: 0 + -45 = -45
-12y2 + y4 = -45

The y term is -12y2.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12y2 + 36 + y4 = -45 + 36

Reorder the terms:
36 + -12y2 + y4 = -45 + 36

Combine like terms: -45 + 36 = -9
36 + -12y2 + y4 = -9

Factor a perfect square on the left side:
(y2 + -6)(y2 + -6) = -9

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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