4x^2-5x=10

Simple and best practice solution for 4x^2-5x=10 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 4x^2-5x=10 equation:


Simplifying
4x2 + -5x = 10

Reorder the terms:
-5x + 4x2 = 10

Solving
-5x + 4x2 = 10

Solving for variable 'x'.

Reorder the terms:
-10 + -5x + 4x2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + -5x + 4x2 = 0

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

Divide each side by '4'.
-2.5 + -1.25x + x2 = 0

Move the constant term to the right:

Add '2.5' to each side of the equation.
-2.5 + -1.25x + 2.5 + x2 = 0 + 2.5

Reorder the terms:
-2.5 + 2.5 + -1.25x + x2 = 0 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + -1.25x + x2 = 0 + 2.5
-1.25x + x2 = 0 + 2.5

Combine like terms: 0 + 2.5 = 2.5
-1.25x + x2 = 2.5

The x term is -1.25x.  Take half its coefficient (-0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
-1.25x + 0.390625 + x2 = 2.5 + 0.390625

Reorder the terms:
0.390625 + -1.25x + x2 = 2.5 + 0.390625

Combine like terms: 2.5 + 0.390625 = 2.890625
0.390625 + -1.25x + x2 = 2.890625

Factor a perfect square on the left side:
(x + -0.625)(x + -0.625) = 2.890625

Calculate the square root of the right side: 1.700183814

Break this problem into two subproblems by setting 
(x + -0.625) equal to 1.700183814 and -1.700183814.

Subproblem 1

x + -0.625 = 1.700183814 Simplifying x + -0.625 = 1.700183814 Reorder the terms: -0.625 + x = 1.700183814 Solving -0.625 + x = 1.700183814 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.625' to each side of the equation. -0.625 + 0.625 + x = 1.700183814 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + x = 1.700183814 + 0.625 x = 1.700183814 + 0.625 Combine like terms: 1.700183814 + 0.625 = 2.325183814 x = 2.325183814 Simplifying x = 2.325183814

Subproblem 2

x + -0.625 = -1.700183814 Simplifying x + -0.625 = -1.700183814 Reorder the terms: -0.625 + x = -1.700183814 Solving -0.625 + x = -1.700183814 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.625' to each side of the equation. -0.625 + 0.625 + x = -1.700183814 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + x = -1.700183814 + 0.625 x = -1.700183814 + 0.625 Combine like terms: -1.700183814 + 0.625 = -1.075183814 x = -1.075183814 Simplifying x = -1.075183814

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.325183814, -1.075183814}

See similar equations:

| 8-4x=12-3x | | P(x)=10x-2000 | | 10r-21=33 | | 123*65/2 | | 10*10-6y=-60 | | -1(9+1)+1= | | (24-y)/4=4 | | 10x-6*10=-60 | | x^2+8y-16=0 | | 10*6-6y=-60 | | 7/8x+5-3/8x-4 | | 17y-22y=0 | | 1/2a-5-1/2a | | 2/3a+5-1/3a-7 | | x^4=2 | | (4+8)= | | 15(7+13x)+3(6+5x)=963 | | 30p+2p= | | 29.95m+10+300m=99.95 | | (17+7)= | | 3(m-4)=m+2 | | X(.50)+25=x(.25)+30 | | 3x/5x^2 | | 1/3v+2/5v=1100 | | (9x)/(x^2-16)-(8)/(x+4) | | 20/15x-1=5/4x | | 400p+2s+3a=1050 | | 7z=16-23 | | 3x^4*5x^7= | | 4n-3=2n+5 | | 3(x-5)-(2x-7)=25 | | 3G-5=g+7 |

Equations solver categories