If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -7x(x2 + 5x + -8) = 0 Reorder the terms: -7x(-8 + 5x + x2) = 0 (-8 * -7x + 5x * -7x + x2 * -7x) = 0 (56x + -35x2 + -7x3) = 0 Solving 56x + -35x2 + -7x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '7x'. 7x(8 + -5x + -1x2) = 0 Ignore the factor 7.Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(8 + -5x + -1x2)' equal to zero and attempt to solve: Simplifying 8 + -5x + -1x2 = 0 Solving 8 + -5x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -8 + 5x + x2 = 0 Move the constant term to the right: Add '8' to each side of the equation. -8 + 5x + 8 + x2 = 0 + 8 Reorder the terms: -8 + 8 + 5x + x2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + 5x + x2 = 0 + 8 5x + x2 = 0 + 8 Combine like terms: 0 + 8 = 8 5x + x2 = 8 The x term is 5x. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5x + 6.25 + x2 = 8 + 6.25 Reorder the terms: 6.25 + 5x + x2 = 8 + 6.25 Combine like terms: 8 + 6.25 = 14.25 6.25 + 5x + x2 = 14.25 Factor a perfect square on the left side: (x + 2.5)(x + 2.5) = 14.25 Calculate the square root of the right side: 3.774917218 Break this problem into two subproblems by setting (x + 2.5) equal to 3.774917218 and -3.774917218.Subproblem 1
x + 2.5 = 3.774917218 Simplifying x + 2.5 = 3.774917218 Reorder the terms: 2.5 + x = 3.774917218 Solving 2.5 + x = 3.774917218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 3.774917218 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 3.774917218 + -2.5 x = 3.774917218 + -2.5 Combine like terms: 3.774917218 + -2.5 = 1.274917218 x = 1.274917218 Simplifying x = 1.274917218Subproblem 2
x + 2.5 = -3.774917218 Simplifying x + 2.5 = -3.774917218 Reorder the terms: 2.5 + x = -3.774917218 Solving 2.5 + x = -3.774917218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -3.774917218 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -3.774917218 + -2.5 x = -3.774917218 + -2.5 Combine like terms: -3.774917218 + -2.5 = -6.274917218 x = -6.274917218 Simplifying x = -6.274917218Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.274917218, -6.274917218}Solution
x = {0, 1.274917218, -6.274917218}
| x+x^2=110 | | 8y+1=7 | | 7x+28=0 | | 5+b=3b-7 | | x*3-19x=-2x*2+20 | | 5x^7+20x^5-45x^4= | | 75*445x/86=3x | | 3x^4+6x^3+9x^2= | | 3a-3=9 | | 5(2a+3)=3(2a+1) | | 7-3n=4 | | 5x-3=x+3+2x | | 2x^3+12x^2+7x+42= | | 22-3(x-2)=5(4-x) | | 3(y-5)=4y-15 | | 9y-3=8y | | x-6y=42 | | x+y=25 | | x+12y=-120 | | 14-8x=65-29x | | x+5-3(x-1)=3-3x | | 3x+10y=90 | | 5(x-3)-3(x-1)=4x-8 | | 4x-7y=-49 | | x^2*8=78 | | 8x-9y=-81 | | x+7y=-35 | | 7x-15y=-30 | | 2.50=5t | | 3x^2+xy-2y^2= | | 2x+14=59-3x | | 12x-4y=40 |