25=-2x^2+10x

Simple and best practice solution for 25=-2x^2+10x 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 25=-2x^2+10x equation:


Simplifying
25 = -2x2 + 10x

Reorder the terms:
25 = 10x + -2x2

Solving
25 = 10x + -2x2

Solving for variable 'x'.

Reorder the terms:
25 + -10x + 2x2 = 10x + -10x + -2x2 + 2x2

Combine like terms: 10x + -10x = 0
25 + -10x + 2x2 = 0 + -2x2 + 2x2
25 + -10x + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
25 + -10x + 2x2 = 0

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

Divide each side by '2'.
12.5 + -5x + x2 = 0

Move the constant term to the right:

Add '-12.5' to each side of the equation.
12.5 + -5x + -12.5 + x2 = 0 + -12.5

Reorder the terms:
12.5 + -12.5 + -5x + x2 = 0 + -12.5

Combine like terms: 12.5 + -12.5 = 0.0
0.0 + -5x + x2 = 0 + -12.5
-5x + x2 = 0 + -12.5

Combine like terms: 0 + -12.5 = -12.5
-5x + x2 = -12.5

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -12.5 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -12.5 + 6.25

Combine like terms: -12.5 + 6.25 = -6.25
6.25 + -5x + x2 = -6.25

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = -6.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| (21x-13)/(x^2-5x)=3 | | X/12=20/31 | | (x+2)=3x-8 | | y=-3(6)+11 | | 6x-1=21.5-3/2 | | -16t^2+49t-34=0 | | 5x+20+x=3x+12-8 | | 2y=43-3x | | 21x^2-121x=40 | | 4x+6=24-2x | | 10c-20c=90 | | 70(7x+14)=18-(x+2) | | .1x-3.3=.5x-2.5 | | -7=3x+10 | | 1.3(x+1.4)=-9.66 | | 26e+891=7 | | 2+2(x-5)=7-7(x-3) | | 1/8(6m-18)=3/4 | | 9d-2.3-10d=6 | | 93.96=4.7p-2.6p | | y=4(11/2)-27 | | 70(8x+16)=140(x+2) | | Y=kX-2 | | 70%=8 | | X^2-20x-25=0 | | 0=-5-6y | | -7(x+4)+2x+7=7x+10 | | -[5z-(14z+6)]=6+(8z+10) | | -14=-6n-8n | | 8x^6-3x^4-2x^2+4=0 | | (4x+8)=(x+2) | | 0.5(8x+14)+3=4(2+x)-0.5 |

Equations solver categories