5x^2+40x=25

Simple and best practice solution for 5x^2+40x=25 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 5x^2+40x=25 equation:


Simplifying
5x2 + 40x = 25

Reorder the terms:
40x + 5x2 = 25

Solving
40x + 5x2 = 25

Solving for variable 'x'.

Reorder the terms:
-25 + 40x + 5x2 = 25 + -25

Combine like terms: 25 + -25 = 0
-25 + 40x + 5x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-5 + 8x + x2) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-5 + 8x + x2)' equal to zero and attempt to solve: Simplifying -5 + 8x + x2 = 0 Solving -5 + 8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '5' to each side of the equation. -5 + 8x + 5 + x2 = 0 + 5 Reorder the terms: -5 + 5 + 8x + x2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 8x + x2 = 0 + 5 8x + x2 = 0 + 5 Combine like terms: 0 + 5 = 5 8x + x2 = 5 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 = 5 + 16 Reorder the terms: 16 + 8x + x2 = 5 + 16 Combine like terms: 5 + 16 = 21 16 + 8x + x2 = 21 Factor a perfect square on the left side: (x + 4)(x + 4) = 21 Calculate the square root of the right side: 4.582575695 Break this problem into two subproblems by setting (x + 4) equal to 4.582575695 and -4.582575695.

Subproblem 1

x + 4 = 4.582575695 Simplifying x + 4 = 4.582575695 Reorder the terms: 4 + x = 4.582575695 Solving 4 + x = 4.582575695 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 = 4.582575695 + -4 Combine like terms: 4 + -4 = 0 0 + x = 4.582575695 + -4 x = 4.582575695 + -4 Combine like terms: 4.582575695 + -4 = 0.582575695 x = 0.582575695 Simplifying x = 0.582575695

Subproblem 2

x + 4 = -4.582575695 Simplifying x + 4 = -4.582575695 Reorder the terms: 4 + x = -4.582575695 Solving 4 + x = -4.582575695 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 = -4.582575695 + -4 Combine like terms: 4 + -4 = 0 0 + x = -4.582575695 + -4 x = -4.582575695 + -4 Combine like terms: -4.582575695 + -4 = -8.582575695 x = -8.582575695 Simplifying x = -8.582575695

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.582575695, -8.582575695}

Solution

x = {0.582575695, -8.582575695}

See similar equations:

| -5(6x-5)=8x+25 | | -8(-5-4x)=-36-6x | | 4X+16=28-2X | | -(3-2x)=-x+21 | | 4x-3-x^2=0 | | -8(-3x+5)-7(-4x+(-9))=0 | | 4n+12.4=-6.8 | | -(3b+4)=-4b | | f(x)=0.9(0.6) | | y^2-16y-10=26 | | cos*2x-5*cosx+3=0 | | 6x^2-17x+1=0 | | 7x-2y+5=0 | | 4n-12.4=-6.8 | | y^2=2y+35 | | sin(12x)-sin(6x)=0 | | 9w-8w+4=0 | | -32x--48=-33-5x | | 6x-6x=10 | | (8+x)-3=56 | | n-10=-18 | | (B^8c^6d^5)*(7b^6c^2d)= | | -1-3x=8(x-7) | | 3w-8w+4=0 | | (y^2)-2y-35=0 | | 5x^2+13+8=0 | | x^2+8x-3=06 | | logx(6x-9)=2 | | (-2u^2)*(6u^6)= | | 2x-6+15x=11 | | 7q+11=10q-10 | | 3x^4+27x=0 |

Equations solver categories