2x+20=40+x^2

Simple and best practice solution for 2x+20=40+x^2 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+20=40+x^2 equation:


Simplifying
2x + 20 = 40 + x2

Reorder the terms:
20 + 2x = 40 + x2

Solving
20 + 2x = 40 + x2

Solving for variable 'x'.

Reorder the terms:
20 + -40 + 2x + -1x2 = 40 + x2 + -40 + -1x2

Combine like terms: 20 + -40 = -20
-20 + 2x + -1x2 = 40 + x2 + -40 + -1x2

Reorder the terms:
-20 + 2x + -1x2 = 40 + -40 + x2 + -1x2

Combine like terms: 40 + -40 = 0
-20 + 2x + -1x2 = 0 + x2 + -1x2
-20 + 2x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-20 + 2x + -1x2 = 0

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

Divide each side by '-1'.
20 + -2x + x2 = 0

Move the constant term to the right:

Add '-20' to each side of the equation.
20 + -2x + -20 + x2 = 0 + -20

Reorder the terms:
20 + -20 + -2x + x2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -2x + x2 = 0 + -20
-2x + x2 = 0 + -20

Combine like terms: 0 + -20 = -20
-2x + x2 = -20

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 = -20 + 1

Reorder the terms:
1 + -2x + x2 = -20 + 1

Combine like terms: -20 + 1 = -19
1 + -2x + x2 = -19

Factor a perfect square on the left side:
(x + -1)(x + -1) = -19

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 9=h+-5 | | 8x+6+4x=10x-5 | | 3*(1+x)=11+x | | -9=-12+w | | 5x(x-1)+2(x-1)= | | 10x+4-2x=7x-4 | | -4+c=-9 | | 48=d+23 | | 2.4b=108 | | 14-3x=15x+5 | | 57.88+.11x=58.54 | | 7(d+8)=2(d-7)+5d | | w+-9=12 | | -3x+5=2x+-10 | | 6s+2=3s+20 | | 2x(2x+2)+(2x+2)= | | 3y=7x-2 | | 9c+0=18 | | 2(8+6x)=3(4x-5) | | 4*(3b+6x)= | | .45(24)+.05x=.15(18+x) | | 3x+6=8x-7 | | k+(-3)=-5 | | 2x^2+16x-1=0 | | 14(d+4)=4(d-7)+10d | | T+0.95=1.25 | | -2+w=-5 | | (5x-6)-(6x-4)=-(-4+4x)-4x+6 | | -13d-12=-2(d+6)-11d | | 2p-8=6 | | a-12=1 | | 3x+6(x-5)=3(x-6) |

Equations solver categories