(4x^2)+3x-4=0

Simple and best practice solution for (4x^2)+3x-4=0 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)+3x-4=0 equation:


Simplifying
(4x2) + 3x + -4 = 0

Reorder the terms:
-4 + 3x + (4x2) = 0

Solving
-4 + 3x + (4x2) = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-1 + 0.75x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 0.75x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + 0.75x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 0.75x + x2 = 0 + 1
0.75x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
0.75x + x2 = 1

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 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = 1 + 0.140625

Combine like terms: 1 + 0.140625 = 1.140625
0.140625 + 0.75x + x2 = 1.140625

Factor a perfect square on the left side:
((x) + 0.375)((x) + 0.375) = 1.140625

Calculate the square root of the right side: 1.068000468

Break this problem into two subproblems by setting 
((x) + 0.375) equal to 1.068000468 and -1.068000468.

Subproblem 1

(x) + 0.375 = 1.068000468 Simplifying (x) + 0.375 = 1.068000468 x + 0.375 = 1.068000468 Reorder the terms: 0.375 + x = 1.068000468 Solving 0.375 + x = 1.068000468 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 = 1.068000468 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = 1.068000468 + -0.375 x = 1.068000468 + -0.375 Combine like terms: 1.068000468 + -0.375 = 0.693000468 x = 0.693000468 Simplifying x = 0.693000468

Subproblem 2

(x) + 0.375 = -1.068000468 Simplifying (x) + 0.375 = -1.068000468 x + 0.375 = -1.068000468 Reorder the terms: 0.375 + x = -1.068000468 Solving 0.375 + x = -1.068000468 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 = -1.068000468 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = -1.068000468 + -0.375 x = -1.068000468 + -0.375 Combine like terms: -1.068000468 + -0.375 = -1.443000468 x = -1.443000468 Simplifying x = -1.443000468

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.693000468, -1.443000468}

See similar equations:

| 2x-5(x-4)=-6+5x+2 | | -3+4x=17-6x | | (x^2)-16x-7=0 | | 5.5-x=-3 | | 39=-2x+7x-6 | | 13=5(1+4m) | | 180n-2360= | | 4x-2(x-2)=-3+5x-17 | | 60=5x-10 | | 2n+5=8n | | 4(2x-1)=3(x-10) | | 28-2x=3x-7 | | 28-2x=3x-8 | | X=75+-2x | | x+0.15x=19183 | | 8x-6+2x=13+x | | 8x+11=8x+4 | | X+2x+5=80 | | -7(6x-9)+2=233 | | 8x+5y+5+16x-12y-5= | | 2(2x-4)-(1x+5)= | | 2x-5(x-4)=-9+5x+7 | | 3(8x-1)+2=215 | | 2z+1=6-3z | | 4-4(2m-6)=-12 | | 8a+25=0 | | 2x-5(x-4)=-9+5x | | 4(5x-6)+7=(-237) | | .25x-4=1 | | 1-3y=-5 | | 3(2v-1)=21 | | 3(x+2.14)=2x |

Equations solver categories