4x^2-16+3x=0

Simple and best practice solution for 4x^2-16+3x=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^2-16+3x=0 equation:


Simplifying
4x2 + -16 + 3x = 0

Reorder the terms:
-16 + 3x + 4x2 = 0

Solving
-16 + 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'.
-4 + 0.75x + x2 = 0

Move the constant term to the right:

Add '4' to each side of the equation.
-4 + 0.75x + 4 + x2 = 0 + 4

Reorder the terms:
-4 + 4 + 0.75x + x2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 0.75x + x2 = 0 + 4
0.75x + x2 = 0 + 4

Combine like terms: 0 + 4 = 4
0.75x + x2 = 4

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 = 4 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = 4 + 0.140625

Combine like terms: 4 + 0.140625 = 4.140625
0.140625 + 0.75x + x2 = 4.140625

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = 4.140625

Calculate the square root of the right side: 2.034852575

Break this problem into two subproblems by setting 
(x + 0.375) equal to 2.034852575 and -2.034852575.

Subproblem 1

x + 0.375 = 2.034852575 Simplifying x + 0.375 = 2.034852575 Reorder the terms: 0.375 + x = 2.034852575 Solving 0.375 + x = 2.034852575 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 = 2.034852575 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = 2.034852575 + -0.375 x = 2.034852575 + -0.375 Combine like terms: 2.034852575 + -0.375 = 1.659852575 x = 1.659852575 Simplifying x = 1.659852575

Subproblem 2

x + 0.375 = -2.034852575 Simplifying x + 0.375 = -2.034852575 Reorder the terms: 0.375 + x = -2.034852575 Solving 0.375 + x = -2.034852575 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 = -2.034852575 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = -2.034852575 + -0.375 x = -2.034852575 + -0.375 Combine like terms: -2.034852575 + -0.375 = -2.409852575 x = -2.409852575 Simplifying x = -2.409852575

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.659852575, -2.409852575}

See similar equations:

| 5x-30=-55 | | y=(5n)(2n) | | 0.2x+2.2=0.5x-0.5 | | -4.9x^2+4.9x+9.8=0 | | 0x+3y=4 | | 7[3x+y]= | | 229/250 | | -2g+3=-5 | | 5cosx=-3 | | 4m-(5m+2)=1 | | sin(2x+7)-cos(3x+8)=0 | | 3x9/10 | | 19-7=2w | | 4x^2+3x+7=3 | | -4(6-7x)=-52 | | 12-7y=2 | | 5(3+2x)=3 | | 9x-6=9(x-9) | | 2(3+2X)=2(X+5) | | 4.5x+9y= | | y= 5 x+ 1 | | -33x-28+29x=12 | | 5/6=(v-3/4) | | 9/2=6-x | | 3x-(-12)=-36 | | 1-3x+7=0 | | 5/6=v-3/4 | | 10=5-3y-3y-7 | | (5x+2)=(3x+1) | | 32y-48=0 | | 4x/38x-20 | | 0.6x+0.7=-1.7 |

Equations solver categories