0=4x^2+7x-132

Simple and best practice solution for 0=4x^2+7x-132 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 0=4x^2+7x-132 equation:


Simplifying
0 = 4x2 + 7x + -132

Reorder the terms:
0 = -132 + 7x + 4x2

Solving
0 = -132 + 7x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + 132 = 132
132 + -7x + -4x2 = -132 + 7x + 4x2 + 132 + -7x + -4x2

Reorder the terms:
132 + -7x + -4x2 = -132 + 132 + 7x + -7x + 4x2 + -4x2

Combine like terms: -132 + 132 = 0
132 + -7x + -4x2 = 0 + 7x + -7x + 4x2 + -4x2
132 + -7x + -4x2 = 7x + -7x + 4x2 + -4x2

Combine like terms: 7x + -7x = 0
132 + -7x + -4x2 = 0 + 4x2 + -4x2
132 + -7x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
132 + -7x + -4x2 = 0

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

Divide each side by '-4'.
-33 + 1.75x + x2 = 0

Move the constant term to the right:

Add '33' to each side of the equation.
-33 + 1.75x + 33 + x2 = 0 + 33

Reorder the terms:
-33 + 33 + 1.75x + x2 = 0 + 33

Combine like terms: -33 + 33 = 0
0 + 1.75x + x2 = 0 + 33
1.75x + x2 = 0 + 33

Combine like terms: 0 + 33 = 33
1.75x + x2 = 33

The x term is 1.75x.  Take half its coefficient (0.875).
Square it (0.765625) and add it to both sides.

Add '0.765625' to each side of the equation.
1.75x + 0.765625 + x2 = 33 + 0.765625

Reorder the terms:
0.765625 + 1.75x + x2 = 33 + 0.765625

Combine like terms: 33 + 0.765625 = 33.765625
0.765625 + 1.75x + x2 = 33.765625

Factor a perfect square on the left side:
(x + 0.875)(x + 0.875) = 33.765625

Calculate the square root of the right side: 5.81081965

Break this problem into two subproblems by setting 
(x + 0.875) equal to 5.81081965 and -5.81081965.

Subproblem 1

x + 0.875 = 5.81081965 Simplifying x + 0.875 = 5.81081965 Reorder the terms: 0.875 + x = 5.81081965 Solving 0.875 + x = 5.81081965 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.875' to each side of the equation. 0.875 + -0.875 + x = 5.81081965 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + x = 5.81081965 + -0.875 x = 5.81081965 + -0.875 Combine like terms: 5.81081965 + -0.875 = 4.93581965 x = 4.93581965 Simplifying x = 4.93581965

Subproblem 2

x + 0.875 = -5.81081965 Simplifying x + 0.875 = -5.81081965 Reorder the terms: 0.875 + x = -5.81081965 Solving 0.875 + x = -5.81081965 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.875' to each side of the equation. 0.875 + -0.875 + x = -5.81081965 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + x = -5.81081965 + -0.875 x = -5.81081965 + -0.875 Combine like terms: -5.81081965 + -0.875 = -6.68581965 x = -6.68581965 Simplifying x = -6.68581965

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.93581965, -6.68581965}

See similar equations:

| 3(2r+2)= | | 0.1x^2-x=1.1x^2+40 | | 288=324-x^2 | | 5x+2x=126 | | x=40-x | | =10!/4!6! | | -9x+3=18x-11 | | -8x=-12-4x | | 0.7+y=340 | | 10.00=0.6x+5.34 | | 8.39=0.6x+5.34 | | y=0.6(5)+5.34 | | y=0.6(3)+5.34 | | f(x)=-2x^3-4x^2+30x | | 9y+3=8y-8 | | y=0.6(1)+5.34 | | -2(2y-3)-y=-2(y-4) | | 4x+9=-1 | | .71x=.13x | | 25m^2-289=0 | | 10.6-15=205.8 | | 10.6-15=206.8 | | -x+3/2=1/4x+1/4 | | -0.01x^2-0.2x+8=0.01x^2+0.1x+3 | | 14=r/15 | | 6.60=0.4x+5.35 | | 4=a/10 | | (-25)(-20)/(-25)-(20) | | y=0.4(5)+5.35 | | y=0.4(3)+5.35 | | y=0.4(1)+5.35 | | 4c-18=16 |

Equations solver categories