If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 3x2 + -6x + -21 = 0 Reorder the terms: -21 + -6x + 3x2 = 0 Solving -21 + -6x + 3x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(-7 + -2x + x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(-7 + -2x + x2)' equal to zero and attempt to solve: Simplifying -7 + -2x + x2 = 0 Solving -7 + -2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '7' to each side of the equation. -7 + -2x + 7 + x2 = 0 + 7 Reorder the terms: -7 + 7 + -2x + x2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -2x + x2 = 0 + 7 -2x + x2 = 0 + 7 Combine like terms: 0 + 7 = 7 -2x + x2 = 7 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = 7 + 1 Reorder the terms: 1 + -2x + x2 = 7 + 1 Combine like terms: 7 + 1 = 8 1 + -2x + x2 = 8 Factor a perfect square on the left side: (x + -1)(x + -1) = 8 Calculate the square root of the right side: 2.828427125 Break this problem into two subproblems by setting (x + -1) equal to 2.828427125 and -2.828427125.Subproblem 1
x + -1 = 2.828427125 Simplifying x + -1 = 2.828427125 Reorder the terms: -1 + x = 2.828427125 Solving -1 + x = 2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 2.828427125 + 1 Combine like terms: -1 + 1 = 0 0 + x = 2.828427125 + 1 x = 2.828427125 + 1 Combine like terms: 2.828427125 + 1 = 3.828427125 x = 3.828427125 Simplifying x = 3.828427125Subproblem 2
x + -1 = -2.828427125 Simplifying x + -1 = -2.828427125 Reorder the terms: -1 + x = -2.828427125 Solving -1 + x = -2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -2.828427125 + 1 Combine like terms: -1 + 1 = 0 0 + x = -2.828427125 + 1 x = -2.828427125 + 1 Combine like terms: -2.828427125 + 1 = -1.828427125 x = -1.828427125 Simplifying x = -1.828427125Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.828427125, -1.828427125}Solution
x = {3.828427125, -1.828427125}
| -53-5x=-11x+37 | | 5n^2+107n+72=0 | | -3+3a=7(-4+4a) | | (7x)(x-2)=0 | | -6(m+1)=6-2m | | -5x+6+3x=0 | | 8x+16=-6(1-5x) | | 6(1-4x)=40-7x | | 5.3x=7(x+3) | | 6x-9+3x=54 | | x(x-9)=252 | | 8x+2=4x-3 | | -4(-5p-7)=p-29 | | 3v^2+2v-21= | | Y+4=3y-2 | | 8x+16=-6-30x | | -2(2p+7)=-14-4p | | 9b-1+9b-1+24b+14=180 | | 5x-6y=3z | | x^2+2x-6=y | | -3(-7k-8)=-22-2k | | y=5xyz+5xy | | a=4000(1+11%*1) | | 5x+x-7= | | 2-6m=-4(2-m) | | 8-56=-7 | | -(-7n-3)-3=-6+8n | | 3x^2+12=174 | | 0.4(5+2x)-5=3(0.3x+0.7) | | Y-6+6=3(x+5)+6 | | 3n^2+9n-1512=0 | | -6(5v-6)+7v=6+36 |