2x+9=x^2+25

Simple and best practice solution for 2x+9=x^2+25 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 2x+9=x^2+25 equation:


Simplifying
2x + 9 = x2 + 25

Reorder the terms:
9 + 2x = x2 + 25

Reorder the terms:
9 + 2x = 25 + x2

Solving
9 + 2x = 25 + x2

Solving for variable 'x'.

Reorder the terms:
9 + -25 + 2x + -1x2 = 25 + x2 + -25 + -1x2

Combine like terms: 9 + -25 = -16
-16 + 2x + -1x2 = 25 + x2 + -25 + -1x2

Reorder the terms:
-16 + 2x + -1x2 = 25 + -25 + x2 + -1x2

Combine like terms: 25 + -25 = 0
-16 + 2x + -1x2 = 0 + x2 + -1x2
-16 + 2x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-16 + 2x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
16 + -2x + x2 = 0

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + -2x + -16 + x2 = 0 + -16

Reorder the terms:
16 + -16 + -2x + x2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + -2x + x2 = 0 + -16
-2x + x2 = 0 + -16

Combine like terms: 0 + -16 = -16
-2x + x2 = -16

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -16 + 1

Reorder the terms:
1 + -2x + x2 = -16 + 1

Combine like terms: -16 + 1 = -15
1 + -2x + x2 = -15

Factor a perfect square on the left side:
(x + -1)(x + -1) = -15

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -6(2u-3)5(u-10)= | | 4x^4-52x^3+4x^2= | | 2x^3+8x=0 | | 4(2x-1)=8x-3-1 | | (2x+24)+x=180 | | 11/3x+1/6=8/3x+19/6 | | 5*(6.245-1.5y)+2y=15.33 | | 8x^2=-10X+3 | | x/25=20 | | 169-3x=24x+22 | | 6+2z-5=9z+1-6z | | 3/2x+6=x | | m-3(m-2)+5=4-(m-4) | | X^3+7x^2-2x-14=0 | | 8-5x=23 | | 9x-(8-8x)= | | 0.3+0.03p+0.04-0.08p=7 | | 2(x+3)-2(5-6x)= | | 92*10= | | 2x^2+1=-3x | | 3x+5=112-10x | | 3x+5=112-10x | | 100-4x=32x+20 | | 5-x/-2=3x | | 2s+9s=44 | | (10-2x)(10-2x)x=72 | | 7x+5*(5.564-1.4x)=27.82 | | 7x+6=x-30 | | x/9=-17 | | x+3y=32 | | 4a+5= | | y=5.564-1.4x |

Equations solver categories