(9y^2-6y+9)-(5y^2-6y+8)=

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Solution for (9y^2-6y+9)-(5y^2-6y+8)= equation:


Simplifying
(9y2 + -6y + 9) + -1(5y2 + -6y + 8) = 0

Reorder the terms:
(9 + -6y + 9y2) + -1(5y2 + -6y + 8) = 0

Remove parenthesis around (9 + -6y + 9y2)
9 + -6y + 9y2 + -1(5y2 + -6y + 8) = 0

Reorder the terms:
9 + -6y + 9y2 + -1(8 + -6y + 5y2) = 0
9 + -6y + 9y2 + (8 * -1 + -6y * -1 + 5y2 * -1) = 0
9 + -6y + 9y2 + (-8 + 6y + -5y2) = 0

Reorder the terms:
9 + -8 + -6y + 6y + 9y2 + -5y2 = 0

Combine like terms: 9 + -8 = 1
1 + -6y + 6y + 9y2 + -5y2 = 0

Combine like terms: -6y + 6y = 0
1 + 0 + 9y2 + -5y2 = 0
1 + 9y2 + -5y2 = 0

Combine like terms: 9y2 + -5y2 = 4y2
1 + 4y2 = 0

Solving
1 + 4y2 = 0

Solving for variable 'y'.

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

Add '-1' to each side of the equation.
1 + -1 + 4y2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 4y2 = 0 + -1
4y2 = 0 + -1

Combine like terms: 0 + -1 = -1
4y2 = -1

Divide each side by '4'.
y2 = -0.25

Simplifying
y2 = -0.25

Reorder the terms:
0.25 + y2 = -0.25 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.25 + y2 = 0.00

The solution to this equation could not be determined.

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