2y^2+20y-70=0

Simple and best practice solution for 2y^2+20y-70=0 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 2y^2+20y-70=0 equation:


Simplifying
2y2 + 20y + -70 = 0

Reorder the terms:
-70 + 20y + 2y2 = 0

Solving
-70 + 20y + 2y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-35 + 10y + y2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-35 + 10y + y2)' equal to zero and attempt to solve: Simplifying -35 + 10y + y2 = 0 Solving -35 + 10y + y2 = 0 Begin completing the square. Move the constant term to the right: Add '35' to each side of the equation. -35 + 10y + 35 + y2 = 0 + 35 Reorder the terms: -35 + 35 + 10y + y2 = 0 + 35 Combine like terms: -35 + 35 = 0 0 + 10y + y2 = 0 + 35 10y + y2 = 0 + 35 Combine like terms: 0 + 35 = 35 10y + y2 = 35 The y term is 10y. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10y + 25 + y2 = 35 + 25 Reorder the terms: 25 + 10y + y2 = 35 + 25 Combine like terms: 35 + 25 = 60 25 + 10y + y2 = 60 Factor a perfect square on the left side: (y + 5)(y + 5) = 60 Calculate the square root of the right side: 7.745966692 Break this problem into two subproblems by setting (y + 5) equal to 7.745966692 and -7.745966692.

Subproblem 1

y + 5 = 7.745966692 Simplifying y + 5 = 7.745966692 Reorder the terms: 5 + y = 7.745966692 Solving 5 + y = 7.745966692 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + y = 7.745966692 + -5 Combine like terms: 5 + -5 = 0 0 + y = 7.745966692 + -5 y = 7.745966692 + -5 Combine like terms: 7.745966692 + -5 = 2.745966692 y = 2.745966692 Simplifying y = 2.745966692

Subproblem 2

y + 5 = -7.745966692 Simplifying y + 5 = -7.745966692 Reorder the terms: 5 + y = -7.745966692 Solving 5 + y = -7.745966692 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + y = -7.745966692 + -5 Combine like terms: 5 + -5 = 0 0 + y = -7.745966692 + -5 y = -7.745966692 + -5 Combine like terms: -7.745966692 + -5 = -12.745966692 y = -12.745966692 Simplifying y = -12.745966692

Solution

The solution to the problem is based on the solutions from the subproblems. y = {2.745966692, -12.745966692}

Solution

y = {2.745966692, -12.745966692}

See similar equations:

| 4+5(2k-3)= | | 0.75x+-4=6 | | x=361 | | 2/5x1/2= | | 2x=7.4(2-x) | | 5x+1=69 | | |9-23|*(-3)/(-3) | | 8(1+5x)+5=13+13+5x | | -10(4/9) | | -103/4 | | 7-(n-5)-2n-9=n-17 | | 3.5x-y=3 | | 36-7x=8x-6 | | 6x5/6= | | 2x-32=4-x | | 5y+6=-18+y | | X/16=2/10 | | 3y^3+2y^2-5y=0 | | 7x-5=7+5x | | 71y+32-6y+23+432= | | 2/3x-4=-4 | | 9x+4x=24 | | 2-8z=47-z | | 3y-4=-25 | | -5p-5=-8-4p | | 12x-10x=29+18+110 | | 3s+3=-3 | | 2x(1+4)= | | 8x/12=4 | | 9x+3=-6 | | psquared+q= | | 2x/4=11 |

Equations solver categories