4x^2=5+3x

Simple and best practice solution for 4x^2=5+3x 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=5+3x equation:


Simplifying
4x2 = 5 + 3x

Solving
4x2 = 5 + 3x

Solving for variable 'x'.

Reorder the terms:
-5 + -3x + 4x2 = 5 + 3x + -5 + -3x

Reorder the terms:
-5 + -3x + 4x2 = 5 + -5 + 3x + -3x

Combine like terms: 5 + -5 = 0
-5 + -3x + 4x2 = 0 + 3x + -3x
-5 + -3x + 4x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
-5 + -3x + 4x2 = 0

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

Divide each side by '4'.
-1.25 + -0.75x + x2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + -0.75x + 1.25 + x2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + -0.75x + x2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + -0.75x + x2 = 0 + 1.25
-0.75x + x2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
-0.75x + x2 = 1.25

The x term is -0.75x.  Take half its coefficient (-0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
-0.75x + 0.140625 + x2 = 1.25 + 0.140625

Reorder the terms:
0.140625 + -0.75x + x2 = 1.25 + 0.140625

Combine like terms: 1.25 + 0.140625 = 1.390625
0.140625 + -0.75x + x2 = 1.390625

Factor a perfect square on the left side:
(x + -0.375)(x + -0.375) = 1.390625

Calculate the square root of the right side: 1.179247642

Break this problem into two subproblems by setting 
(x + -0.375) equal to 1.179247642 and -1.179247642.

Subproblem 1

x + -0.375 = 1.179247642 Simplifying x + -0.375 = 1.179247642 Reorder the terms: -0.375 + x = 1.179247642 Solving -0.375 + x = 1.179247642 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + x = 1.179247642 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + x = 1.179247642 + 0.375 x = 1.179247642 + 0.375 Combine like terms: 1.179247642 + 0.375 = 1.554247642 x = 1.554247642 Simplifying x = 1.554247642

Subproblem 2

x + -0.375 = -1.179247642 Simplifying x + -0.375 = -1.179247642 Reorder the terms: -0.375 + x = -1.179247642 Solving -0.375 + x = -1.179247642 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + x = -1.179247642 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + x = -1.179247642 + 0.375 x = -1.179247642 + 0.375 Combine like terms: -1.179247642 + 0.375 = -0.804247642 x = -0.804247642 Simplifying x = -0.804247642

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.554247642, -0.804247642}

See similar equations:

| Ax+7=19 | | 3(5-3x)/-4=-15 | | -4/5(5/4-5x)=5-14 | | (3x-15)-(-7x+9)= | | 3(-9-4n)-4=8n-9(n+2) | | -0.8(x+1)=0.2(x+3) | | x^2+25-10=0 | | 2.35/36.80= | | -10+75x=5(x-4) | | 8a+4-6a+3=5a-15+a | | 15+3x+5=5x-40 | | 5x+2(-2+3)=1 | | X+2+3x=2+x-6 | | 8/5*i | | 3(4x+5)-6=81 | | C(x-4)=6(x-4) | | 2.125=-x^3+3x^2-x+1 | | 6x=10x-16 | | 3(X+1)-5=3-2 | | 24-(x+7)=6x-4 | | log(x+3)=1+log(x-2) | | -5(8p+6)=5-5p | | 6-3x-4x+8=7 | | 5(x+2)=5x | | b+3=24 | | 270=16x-14 | | 7x-12+2x=4+9x-15 | | 0.09x+3.41=0.07x+3.29 | | 6x-12+8x-20=15 | | -5x+8=3x-2+14 | | -1/3r-2r=7/4 | | 6n^2-21=11n |

Equations solver categories