y^2-14y=-38

Simple and best practice solution for y^2-14y=-38 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 y^2-14y=-38 equation:


Simplifying
y2 + -14y = -38

Reorder the terms:
-14y + y2 = -38

Solving
-14y + y2 = -38

Solving for variable 'y'.

Reorder the terms:
38 + -14y + y2 = -38 + 38

Combine like terms: -38 + 38 = 0
38 + -14y + y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-38' to each side of the equation.
38 + -14y + -38 + y2 = 0 + -38

Reorder the terms:
38 + -38 + -14y + y2 = 0 + -38

Combine like terms: 38 + -38 = 0
0 + -14y + y2 = 0 + -38
-14y + y2 = 0 + -38

Combine like terms: 0 + -38 = -38
-14y + y2 = -38

The y term is -14y.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14y + 49 + y2 = -38 + 49

Reorder the terms:
49 + -14y + y2 = -38 + 49

Combine like terms: -38 + 49 = 11
49 + -14y + y2 = 11

Factor a perfect square on the left side:
(y + -7)(y + -7) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(y + -7) equal to 3.31662479 and -3.31662479.

Subproblem 1

y + -7 = 3.31662479 Simplifying y + -7 = 3.31662479 Reorder the terms: -7 + y = 3.31662479 Solving -7 + y = 3.31662479 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + y = 3.31662479 + 7 Combine like terms: -7 + 7 = 0 0 + y = 3.31662479 + 7 y = 3.31662479 + 7 Combine like terms: 3.31662479 + 7 = 10.31662479 y = 10.31662479 Simplifying y = 10.31662479

Subproblem 2

y + -7 = -3.31662479 Simplifying y + -7 = -3.31662479 Reorder the terms: -7 + y = -3.31662479 Solving -7 + y = -3.31662479 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + y = -3.31662479 + 7 Combine like terms: -7 + 7 = 0 0 + y = -3.31662479 + 7 y = -3.31662479 + 7 Combine like terms: -3.31662479 + 7 = 3.68337521 y = 3.68337521 Simplifying y = 3.68337521

Solution

The solution to the problem is based on the solutions from the subproblems. y = {10.31662479, 3.68337521}

See similar equations:

| -6(-5x+7)=48 | | 3.8x+7.56=2.1 | | 3/2(x+5)+2=7(1-x) | | 7+1/2y=10 | | 4(3x+5)=140 | | f(x)=-2x^2+12x-30 | | 5x^2-5x=30 | | 5-(6r-3)=2r-8 | | 4(9+7x)=316 | | 3x+4=-3x-50 | | -x-3=-19+7x | | W=2/3v | | 10w-8=-198 | | -0.02x^2+2.6x-66.5=0 | | -3/5u-9=-5 | | 1.98x=17.82 | | -7(6-2x)=4x+28 | | -4x-(-4)=-5 | | 2x^3-4x^2-48x=0 | | 5+5x=-5x-65 | | 2a-2/3b-9/2a-1/6a | | x/6-9/2=2x/3 | | (12x-8)/7=4 | | =3(x-7) | | 3x+6=-7x+66 | | 882x-378=504 | | 6x=-645 | | 2-4(k+2)+16=0 | | 2ax+3x+6a+9=0 | | 10x-300=100 | | -0.09x^2+x+1.20=0 | | 5/8q+60=0 |

Equations solver categories