4(x^2+20x+25)=-2

Simple and best practice solution for 4(x^2+20x+25)=-2 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 4(x^2+20x+25)=-2 equation:


Simplifying
4(x2 + 20x + 25) = -2

Reorder the terms:
4(25 + 20x + x2) = -2
(25 * 4 + 20x * 4 + x2 * 4) = -2
(100 + 80x + 4x2) = -2

Solving
100 + 80x + 4x2 = -2

Solving for variable 'x'.

Reorder the terms:
100 + 2 + 80x + 4x2 = -2 + 2

Combine like terms: 100 + 2 = 102
102 + 80x + 4x2 = -2 + 2

Combine like terms: -2 + 2 = 0
102 + 80x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(51 + 40x + 2x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(51 + 40x + 2x2)' equal to zero and attempt to solve: Simplifying 51 + 40x + 2x2 = 0 Solving 51 + 40x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 25.5 + 20x + x2 = 0 Move the constant term to the right: Add '-25.5' to each side of the equation. 25.5 + 20x + -25.5 + x2 = 0 + -25.5 Reorder the terms: 25.5 + -25.5 + 20x + x2 = 0 + -25.5 Combine like terms: 25.5 + -25.5 = 0.0 0.0 + 20x + x2 = 0 + -25.5 20x + x2 = 0 + -25.5 Combine like terms: 0 + -25.5 = -25.5 20x + x2 = -25.5 The x term is 20x. Take half its coefficient (10). Square it (100) and add it to both sides. Add '100' to each side of the equation. 20x + 100 + x2 = -25.5 + 100 Reorder the terms: 100 + 20x + x2 = -25.5 + 100 Combine like terms: -25.5 + 100 = 74.5 100 + 20x + x2 = 74.5 Factor a perfect square on the left side: (x + 10)(x + 10) = 74.5 Calculate the square root of the right side: 8.631338251 Break this problem into two subproblems by setting (x + 10) equal to 8.631338251 and -8.631338251.

Subproblem 1

x + 10 = 8.631338251 Simplifying x + 10 = 8.631338251 Reorder the terms: 10 + x = 8.631338251 Solving 10 + x = 8.631338251 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 8.631338251 + -10 Combine like terms: 10 + -10 = 0 0 + x = 8.631338251 + -10 x = 8.631338251 + -10 Combine like terms: 8.631338251 + -10 = -1.368661749 x = -1.368661749 Simplifying x = -1.368661749

Subproblem 2

x + 10 = -8.631338251 Simplifying x + 10 = -8.631338251 Reorder the terms: 10 + x = -8.631338251 Solving 10 + x = -8.631338251 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = -8.631338251 + -10 Combine like terms: 10 + -10 = 0 0 + x = -8.631338251 + -10 x = -8.631338251 + -10 Combine like terms: -8.631338251 + -10 = -18.631338251 x = -18.631338251 Simplifying x = -18.631338251

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.368661749, -18.631338251}

Solution

x = {-1.368661749, -18.631338251}

See similar equations:

| -27=3(v-5)-7v | | 3+3x-x=x-4+2x | | 6z-23=2z+5 | | x-7=19+7 | | 13y=12y-4 | | y=-6sin | | 8(2x+19)=16x-7 | | 7(x-2)-6=2x+8 | | 3x-4y+5z=2 | | h=-16x^2+32x | | 2sin+6=7 | | 17=w+13 | | -4-3/4= | | 3g^2+16g+5=0 | | 2d^2+25d+12=0 | | M(x)=-(x+2)-6 | | -7x-2=24-9z | | (8+7i)-(-4-10i)= | | 1n-4l=13 | | 5p^2-12p-9=0 | | 2x-5(x-4)=9+4x-13 | | .5x-9=2x-36 | | 3x-2+8x+7=38 | | (x)=3x^2+10 | | -4x-1=-10 | | (8+4i)-(-6-3i)= | | V^2+40v=0 | | 24x-(2-3x)=38 | | 144=6y-y | | x-2/5=7/15 | | 144=6y+y | | 11x+5=82 |

Equations solver categories