If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x * x + 7x + -8x * x + -10x + 20 + -2x = 21 Multiply x * x x2 + 7x + -8x * x + -10x + 20 + -2x = 21 Multiply x * x x2 + 7x + -8x2 + -10x + 20 + -2x = 21 Reorder the terms: 20 + 7x + -10x + -2x + x2 + -8x2 = 21 Combine like terms: 7x + -10x = -3x 20 + -3x + -2x + x2 + -8x2 = 21 Combine like terms: -3x + -2x = -5x 20 + -5x + x2 + -8x2 = 21 Combine like terms: x2 + -8x2 = -7x2 20 + -5x + -7x2 = 21 Solving 20 + -5x + -7x2 = 21 Solving for variable 'x'. Reorder the terms: 20 + -21 + -5x + -7x2 = 21 + -21 Combine like terms: 20 + -21 = -1 -1 + -5x + -7x2 = 21 + -21 Combine like terms: 21 + -21 = 0 -1 + -5x + -7x2 = 0 Factor out the Greatest Common Factor (GCF), '-1'. -1(1 + 5x + 7x2) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(1 + 5x + 7x2)' equal to zero and attempt to solve: Simplifying 1 + 5x + 7x2 = 0 Solving 1 + 5x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 0.1428571429 + 0.7142857143x + x2 = 0 Move the constant term to the right: Add '-0.1428571429' to each side of the equation. 0.1428571429 + 0.7142857143x + -0.1428571429 + x2 = 0 + -0.1428571429 Reorder the terms: 0.1428571429 + -0.1428571429 + 0.7142857143x + x2 = 0 + -0.1428571429 Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000 0.0000000000 + 0.7142857143x + x2 = 0 + -0.1428571429 0.7142857143x + x2 = 0 + -0.1428571429 Combine like terms: 0 + -0.1428571429 = -0.1428571429 0.7142857143x + x2 = -0.1428571429 The x term is 0.7142857143x. Take half its coefficient (0.3571428572). Square it (0.1275510204) and add it to both sides. Add '0.1275510204' to each side of the equation. 0.7142857143x + 0.1275510204 + x2 = -0.1428571429 + 0.1275510204 Reorder the terms: 0.1275510204 + 0.7142857143x + x2 = -0.1428571429 + 0.1275510204 Combine like terms: -0.1428571429 + 0.1275510204 = -0.0153061225 0.1275510204 + 0.7142857143x + x2 = -0.0153061225 Factor a perfect square on the left side: (x + 0.3571428572)(x + 0.3571428572) = -0.0153061225 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
| 5lne^7=0 | | 7x/10=14 | | 92-d=78 | | -30x^2-61x-30=0 | | 2(3x-8)=7x | | (8-y)(5y+3)=0 | | 2((-21)-5)+8= | | 2x-4y+7=0 | | 2(-21)-5+8= | | 3y+43=-5(y-7) | | 63x^2y-28x^2y^3=0 | | 98-b=27 | | 9(-21)-5(-21)-8= | | m^4-23m-50=0 | | -4x*x=24x+11 | | 4x-19=3x+3 | | m^2-23m-50=0 | | 67=54 | | n+10/3=3 | | 1-4(y-2x)=49+4(x-4y) | | 5x-9+x+3=2x+2 | | 6-4(y-3)=30 | | 4z/9-2=-4 | | E=1-2+4 | | 4x^2-36x+45=0 | | 29-4x=14-7x | | 30-0.5x=2x-15+3x | | z/7-3=9 | | 35-2x=7-9x | | 30-0.5x=2x-115+3x | | 8x+-16=8x+-16 | | 8x+-16=8x+16 |