3-1*1+3y-2y*2y=

Simple and best practice solution for 3-1*1+3y-2y*2y= equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3-1*1+3y-2y*2y= equation:


Simplifying
3 + -1 * 1 + 3y + -2y * 2y = 0

Multiply -1 * 1
3 + -1 + 3y + -2y * 2y = 0

Reorder the terms for easier multiplication:
3 + -1 + 3y + -2 * 2y * y = 0

Multiply -2 * 2
3 + -1 + 3y + -4y * y = 0

Multiply y * y
3 + -1 + 3y + -4y2 = 0

Combine like terms: 3 + -1 = 2
2 + 3y + -4y2 = 0

Solving
2 + 3y + -4y2 = 0

Solving for variable 'y'.

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-0.5 + -0.75y + y2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -0.75y + 0.5 + y2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -0.75y + y2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -0.75y + y2 = 0 + 0.5
-0.75y + y2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-0.75y + y2 = 0.5

The y term is -0.75y.  Take half its coefficient (-0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
-0.75y + 0.140625 + y2 = 0.5 + 0.140625

Reorder the terms:
0.140625 + -0.75y + y2 = 0.5 + 0.140625

Combine like terms: 0.5 + 0.140625 = 0.640625
0.140625 + -0.75y + y2 = 0.640625

Factor a perfect square on the left side:
(y + -0.375)(y + -0.375) = 0.640625

Calculate the square root of the right side: 0.80039053

Break this problem into two subproblems by setting 
(y + -0.375) equal to 0.80039053 and -0.80039053.

Subproblem 1

y + -0.375 = 0.80039053 Simplifying y + -0.375 = 0.80039053 Reorder the terms: -0.375 + y = 0.80039053 Solving -0.375 + y = 0.80039053 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + y = 0.80039053 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + y = 0.80039053 + 0.375 y = 0.80039053 + 0.375 Combine like terms: 0.80039053 + 0.375 = 1.17539053 y = 1.17539053 Simplifying y = 1.17539053

Subproblem 2

y + -0.375 = -0.80039053 Simplifying y + -0.375 = -0.80039053 Reorder the terms: -0.375 + y = -0.80039053 Solving -0.375 + y = -0.80039053 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + y = -0.80039053 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + y = -0.80039053 + 0.375 y = -0.80039053 + 0.375 Combine like terms: -0.80039053 + 0.375 = -0.42539053 y = -0.42539053 Simplifying y = -0.42539053

Solution

The solution to the problem is based on the solutions from the subproblems. y = {1.17539053, -0.42539053}

See similar equations:

| 20x^2-14x-7=0 | | 2x-7=4x+4 | | 3=9+-3 | | 7x-3(3x+13)=-61 | | -4(8v+1)=-6(6+5v)+4 | | 10n=7 | | 7y+16=4y-2 | | 10n=-5 | | 0-4y+3+3y= | | 10c+12c-16=-8 | | 3x^2+(2k-1)+12=0 | | -4k+7-2k=30 | | 7p=5p+p | | -19=10x+8-x | | 2.566x=-12.54774 | | 5+5y-5= | | x-5=3x-4 | | 30+3x+5x-5=145 | | 2b+7-3b=-5 | | -5+1/3a=-4 | | 4x^2-88x-92=0 | | 0.8x-7=2.3x-16 | | 2(3x-6)=2x+4 | | (x*x)+6x-5=0 | | -20x^2-14x-7=0 | | 6(2+3)+1+3-(-5)= | | 9-2c+6c=29 | | a+5=1/5(15+5a) | | 10x-(2)=-32 | | 2x-4+x+7=90 | | -9(x-5)+9=3x+42 | | 51-(3+6x-2(x+3))=5(4x-3)-(5(x-1)-16c+6) |

Equations solver categories