2y^2+4=5y

Simple and best practice solution for 2y^2+4=5y 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+4=5y equation:


Simplifying
2y2 + 4 = 5y

Reorder the terms:
4 + 2y2 = 5y

Solving
4 + 2y2 = 5y

Solving for variable 'y'.

Reorder the terms:
4 + -5y + 2y2 = 5y + -5y

Combine like terms: 5y + -5y = 0
4 + -5y + 2y2 = 0

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

Divide each side by '2'.
2 + -2.5y + y2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -2.5y + -2 + y2 = 0 + -2

Reorder the terms:
2 + -2 + -2.5y + y2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -2.5y + y2 = 0 + -2
-2.5y + y2 = 0 + -2

Combine like terms: 0 + -2 = -2
-2.5y + y2 = -2

The y term is -2.5y.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5y + 1.5625 + y2 = -2 + 1.5625

Reorder the terms:
1.5625 + -2.5y + y2 = -2 + 1.5625

Combine like terms: -2 + 1.5625 = -0.4375
1.5625 + -2.5y + y2 = -0.4375

Factor a perfect square on the left side:
(y + -1.25)(y + -1.25) = -0.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| (20+x)/2=6 | | x+x/4=3/5 | | 44.372=(x-20) | | 23x-x=13 | | 5y-9-3y=2y-1 | | 2l+2W=4lw | | 2(9+d)= | | 78=-6(3k+5) | | 2p+3(p+3)= | | 3r-6=-11r+4 | | x+x/4=35 | | 5(f+1)=5f-8 | | 3x^2-19x-70=0 | | xy+y=yx | | a^3+6a^2+5a-12=0 | | r-4+r=12 | | -11.2+4(2.1-q)=-0.8 | | x+(3x+6)=10 | | 9(5c-1)-10=43c+9 | | 3x^3-10x^2+6x-56=0 | | 5(3+c)= | | -14.99=3.14+-11.85 | | 1+3n=180 | | P(x)=x^4+3x^3-39x^2-47x+210 | | 2c=c+3 | | 2(6.5x-10)=3x+20 | | -10-4a=5(-8a-8)-6 | | 3+0.5=1.50+1.25x | | 5-5=13x+10x | | -10-4a=5(8a-8)-6 | | 7=-.333t^2+7.333t | | -23-4= |

Equations solver categories