4x^2+7x+76=180

Simple and best practice solution for 4x^2+7x+76=180 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+7x+76=180 equation:


Simplifying
4x2 + 7x + 76 = 180

Reorder the terms:
76 + 7x + 4x2 = 180

Solving
76 + 7x + 4x2 = 180

Solving for variable 'x'.

Reorder the terms:
76 + -180 + 7x + 4x2 = 180 + -180

Combine like terms: 76 + -180 = -104
-104 + 7x + 4x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-104 + 7x + 4x2 = 0

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

Divide each side by '4'.
-26 + 1.75x + x2 = 0

Move the constant term to the right:

Add '26' to each side of the equation.
-26 + 1.75x + 26 + x2 = 0 + 26

Reorder the terms:
-26 + 26 + 1.75x + x2 = 0 + 26

Combine like terms: -26 + 26 = 0
0 + 1.75x + x2 = 0 + 26
1.75x + x2 = 0 + 26

Combine like terms: 0 + 26 = 26
1.75x + x2 = 26

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 = 26 + 0.765625

Reorder the terms:
0.765625 + 1.75x + x2 = 26 + 0.765625

Combine like terms: 26 + 0.765625 = 26.765625
0.765625 + 1.75x + x2 = 26.765625

Factor a perfect square on the left side:
(x + 0.875)(x + 0.875) = 26.765625

Calculate the square root of the right side: 5.173550522

Break this problem into two subproblems by setting 
(x + 0.875) equal to 5.173550522 and -5.173550522.

Subproblem 1

x + 0.875 = 5.173550522 Simplifying x + 0.875 = 5.173550522 Reorder the terms: 0.875 + x = 5.173550522 Solving 0.875 + x = 5.173550522 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 = 5.173550522 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + x = 5.173550522 + -0.875 x = 5.173550522 + -0.875 Combine like terms: 5.173550522 + -0.875 = 4.298550522 x = 4.298550522 Simplifying x = 4.298550522

Subproblem 2

x + 0.875 = -5.173550522 Simplifying x + 0.875 = -5.173550522 Reorder the terms: 0.875 + x = -5.173550522 Solving 0.875 + x = -5.173550522 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 = -5.173550522 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + x = -5.173550522 + -0.875 x = -5.173550522 + -0.875 Combine like terms: -5.173550522 + -0.875 = -6.048550522 x = -6.048550522 Simplifying x = -6.048550522

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.298550522, -6.048550522}

See similar equations:

| 3b-7+9b=10b+9 | | 9b^2+6b-11=0 | | 7+-3(8t-10)=85 | | X+0.875=0.5 | | -8a+7a=-5a-2a | | x-7.9=-2.7 | | -6x^2-16x+1=0 | | 35x^8-42x=X | | N+8=8+4n-n-12 | | 10-8p=-10p | | 12c-8-fc=27 | | 20x-13x=7 | | 1204.2528=2*3.14*r^2+2*3.14r*h | | -104=2v+8(v-3) | | -n-10=5 | | 6r-1=116r | | k+8.3=3.4 | | 3x+5x+24+4x=180 | | -6w+4(w-7)=-24 | | 120=-5(8-4x) | | -9c-5=9-7c | | 9y-9=36 | | 84=-2(6-6b) | | 5a+4=2a-11 | | -82=-2-5(6+5p) | | 5y-7=2x | | 6h+9+4=-7+4h | | -8x^2-5x+3=0 | | 8y-33=5y+9 | | 3=7.59+0.69t | | 10n^5/3 | | 7x+3x=-20 |

Equations solver categories