-10x=4x^2-1

Simple and best practice solution for -10x=4x^2-1 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 -10x=4x^2-1 equation:


Simplifying
-10x = 4x2 + -1

Reorder the terms:
-10x = -1 + 4x2

Solving
-10x = -1 + 4x2

Solving for variable 'x'.

Reorder the terms:
1 + -10x + -4x2 = -1 + 4x2 + 1 + -4x2

Reorder the terms:
1 + -10x + -4x2 = -1 + 1 + 4x2 + -4x2

Combine like terms: -1 + 1 = 0
1 + -10x + -4x2 = 0 + 4x2 + -4x2
1 + -10x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
1 + -10x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-0.25 + 2.5x + x2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + 2.5x + 0.25 + x2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + 2.5x + x2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 2.5x + x2 = 0 + 0.25
2.5x + x2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
2.5x + x2 = 0.25

The x term is 2.5x.  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.
2.5x + 1.5625 + x2 = 0.25 + 1.5625

Reorder the terms:
1.5625 + 2.5x + x2 = 0.25 + 1.5625

Combine like terms: 0.25 + 1.5625 = 1.8125
1.5625 + 2.5x + x2 = 1.8125

Factor a perfect square on the left side:
(x + 1.25)(x + 1.25) = 1.8125

Calculate the square root of the right side: 1.346291202

Break this problem into two subproblems by setting 
(x + 1.25) equal to 1.346291202 and -1.346291202.

Subproblem 1

x + 1.25 = 1.346291202 Simplifying x + 1.25 = 1.346291202 Reorder the terms: 1.25 + x = 1.346291202 Solving 1.25 + x = 1.346291202 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = 1.346291202 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = 1.346291202 + -1.25 x = 1.346291202 + -1.25 Combine like terms: 1.346291202 + -1.25 = 0.096291202 x = 0.096291202 Simplifying x = 0.096291202

Subproblem 2

x + 1.25 = -1.346291202 Simplifying x + 1.25 = -1.346291202 Reorder the terms: 1.25 + x = -1.346291202 Solving 1.25 + x = -1.346291202 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = -1.346291202 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = -1.346291202 + -1.25 x = -1.346291202 + -1.25 Combine like terms: -1.346291202 + -1.25 = -2.596291202 x = -2.596291202 Simplifying x = -2.596291202

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.096291202, -2.596291202}

See similar equations:

| 11(x+8)+17x= | | 3(y+7)+8y= | | 9/3x-2=8/x | | -3.3-3z-2.6z=(-3z)-3.5 | | -3.3-3z-2.6z=(-3)-3.5 | | (-2m-8)+(-8m+6)= | | X^2-1.5x=52 | | 9-(-7)/10 | | 3a^2(ab^2-b^2)= | | 6x-10=4x-7 | | 3+8=48 | | 7x-3y=-18 | | 8x^2+20x-104=0 | | -7x+11=2x-3 | | 2x+3(x+1)=28 | | 7x^2-15+6=0 | | -5/4*1/3 | | 93/5-1/3 | | 6(x+9)=0 | | 3+7*56= | | X-4+5X=4X+8 | | -3X+8=5X+16 | | 7X+10=6X-5 | | 3+56*77= | | 3+56=77 | | X-56=4x+12 | | 8x+(4x-1)=2 | | -4(4x-3)=-16(x+2) | | 2w+2(17+3w)= | | Y-16=36-3y | | y=4x-25/3x+15+10 | | u-5v+4u+8v= |

Equations solver categories