-3y^2-5y=9

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Solution for -3y^2-5y=9 equation:


Simplifying
-3y2 + -5y = 9

Reorder the terms:
-5y + -3y2 = 9

Solving
-5y + -3y2 = 9

Solving for variable 'y'.

Reorder the terms:
-9 + -5y + -3y2 = 9 + -9

Combine like terms: 9 + -9 = 0
-9 + -5y + -3y2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(9 + 5y + 3y2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(9 + 5y + 3y2)' equal to zero and attempt to solve: Simplifying 9 + 5y + 3y2 = 0 Solving 9 + 5y + 3y2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 3 + 1.666666667y + y2 = 0 Move the constant term to the right: Add '-3' to each side of the equation. 3 + 1.666666667y + -3 + y2 = 0 + -3 Reorder the terms: 3 + -3 + 1.666666667y + y2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 1.666666667y + y2 = 0 + -3 1.666666667y + y2 = 0 + -3 Combine like terms: 0 + -3 = -3 1.666666667y + y2 = -3 The y term is 1.666666667y. Take half its coefficient (0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. 1.666666667y + 0.6944444447 + y2 = -3 + 0.6944444447 Reorder the terms: 0.6944444447 + 1.666666667y + y2 = -3 + 0.6944444447 Combine like terms: -3 + 0.6944444447 = -2.3055555553 0.6944444447 + 1.666666667y + y2 = -2.3055555553 Factor a perfect square on the left side: (y + 0.8333333335)(y + 0.8333333335) = -2.3055555553 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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