2x^2+1=4x-8

Simple and best practice solution for 2x^2+1=4x-8 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^2+1=4x-8 equation:


Simplifying
2x2 + 1 = 4x + -8

Reorder the terms:
1 + 2x2 = 4x + -8

Reorder the terms:
1 + 2x2 = -8 + 4x

Solving
1 + 2x2 = -8 + 4x

Solving for variable 'x'.

Reorder the terms:
1 + 8 + -4x + 2x2 = -8 + 4x + 8 + -4x

Combine like terms: 1 + 8 = 9
9 + -4x + 2x2 = -8 + 4x + 8 + -4x

Reorder the terms:
9 + -4x + 2x2 = -8 + 8 + 4x + -4x

Combine like terms: -8 + 8 = 0
9 + -4x + 2x2 = 0 + 4x + -4x
9 + -4x + 2x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
9 + -4x + 2x2 = 0

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

Divide each side by '2'.
4.5 + -2x + x2 = 0

Move the constant term to the right:

Add '-4.5' to each side of the equation.
4.5 + -2x + -4.5 + x2 = 0 + -4.5

Reorder the terms:
4.5 + -4.5 + -2x + x2 = 0 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + -2x + x2 = 0 + -4.5
-2x + x2 = 0 + -4.5

Combine like terms: 0 + -4.5 = -4.5
-2x + x2 = -4.5

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 = -4.5 + 1

Reorder the terms:
1 + -2x + x2 = -4.5 + 1

Combine like terms: -4.5 + 1 = -3.5
1 + -2x + x2 = -3.5

Factor a perfect square on the left side:
(x + -1)(x + -1) = -3.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2x^2=4x-8 | | 2/5a=10 | | 18=5(x-2)-12 | | 4q-3=14 | | (2X+1)2=(X-1)2+3x(X+2) | | 28=6.00+a(60.0) | | (1/8)^x | | log1/x | | 16y-5-8y=28 | | 8j=8j-28 | | s=x(20-2x) | | 144-15-12= | | t=66-29x | | 5/3*18 | | 1.42/-5-3.4=2.4(0.82-3) | | 4x+(3x+13)=180 | | 2(y+9)=-4(5y-1)+6y | | 240+4x=180 | | 4x^2-18x+5=0 | | 240+4x=360 | | 10x+3+8x-12+12x-9+4x+2+9x-3=360 | | A-15=11 | | 180/922.28 | | 7/4^2 | | 4-1/2=12 | | X/-2-5=3/4x | | 7y=2x+6 | | 2.3(9+x)=-5(4-x) | | 1.2(16-x)=-12(x+7) | | [(-16)x(-20.25)]= | | 6v+24=2(v-4) | | 248+42= |

Equations solver categories