56=2x^2+4x(4)

Simple and best practice solution for 56=2x^2+4x(4) 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 56=2x^2+4x(4) equation:


Simplifying
56 = 2x2 + 4x(4)

Reorder the terms for easier multiplication:
56 = 2x2 + 4 * 4x

Multiply 4 * 4
56 = 2x2 + 16x

Reorder the terms:
56 = 16x + 2x2

Solving
56 = 16x + 2x2

Solving for variable 'x'.

Reorder the terms:
56 + -16x + -2x2 = 16x + -16x + 2x2 + -2x2

Combine like terms: 16x + -16x = 0
56 + -16x + -2x2 = 0 + 2x2 + -2x2
56 + -16x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
56 + -16x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(28 + -8x + -1x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(28 + -8x + -1x2)' equal to zero and attempt to solve: Simplifying 28 + -8x + -1x2 = 0 Solving 28 + -8x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -28 + 8x + x2 = 0 Move the constant term to the right: Add '28' to each side of the equation. -28 + 8x + 28 + x2 = 0 + 28 Reorder the terms: -28 + 28 + 8x + x2 = 0 + 28 Combine like terms: -28 + 28 = 0 0 + 8x + x2 = 0 + 28 8x + x2 = 0 + 28 Combine like terms: 0 + 28 = 28 8x + x2 = 28 The x term is 8x. Take half its coefficient (4). Square it (16) and add it to both sides. Add '16' to each side of the equation. 8x + 16 + x2 = 28 + 16 Reorder the terms: 16 + 8x + x2 = 28 + 16 Combine like terms: 28 + 16 = 44 16 + 8x + x2 = 44 Factor a perfect square on the left side: (x + 4)(x + 4) = 44 Calculate the square root of the right side: 6.633249581 Break this problem into two subproblems by setting (x + 4) equal to 6.633249581 and -6.633249581.

Subproblem 1

x + 4 = 6.633249581 Simplifying x + 4 = 6.633249581 Reorder the terms: 4 + x = 6.633249581 Solving 4 + x = 6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 6.633249581 + -4 Combine like terms: 4 + -4 = 0 0 + x = 6.633249581 + -4 x = 6.633249581 + -4 Combine like terms: 6.633249581 + -4 = 2.633249581 x = 2.633249581 Simplifying x = 2.633249581

Subproblem 2

x + 4 = -6.633249581 Simplifying x + 4 = -6.633249581 Reorder the terms: 4 + x = -6.633249581 Solving 4 + x = -6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -6.633249581 + -4 Combine like terms: 4 + -4 = 0 0 + x = -6.633249581 + -4 x = -6.633249581 + -4 Combine like terms: -6.633249581 + -4 = -10.633249581 x = -10.633249581 Simplifying x = -10.633249581

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.633249581, -10.633249581}

Solution

x = {2.633249581, -10.633249581}

See similar equations:

| 9/x+5/x+7/4=0 | | 2x*x-18=0 | | 6(j-7)+5(2j+3)= | | 2x^3y+12x^2y-10xy=0 | | 6+4x=50 | | 6/z=45 | | 9x^2-9x-1=0 | | 8x+3(5-2x)=33 | | 2y+x=15 | | 8+2x-3=72 | | 2x-3+8=72 | | 5n+10+8n-9n+3=0 | | 42=v-32/9 | | ((53.7+37.2)-(9.1+3.7))= | | 4x-4=4x-8 | | -2*5+5y=-10 | | A-12=2 | | 4x-1=4x-8 | | 105/8=w-8 | | 25/75=d/12 | | 20x-4-12x=8x-6+2 | | 500/10000=p/100 | | 500/10000=p/100 | | -2*5+5y=10 | | f-83/4=5 | | 3x^2+8x-12=0 | | 15/33=5/x | | 3n+116=500 | | 6n^2-19n+14=0 | | 11+7m-6-4m=0 | | 6x^2+9x-4=0 | | 41/3=z-2/3 |

Equations solver categories