If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 21 = x2 + 4x Reorder the terms: 21 = 4x + x2 Solving 21 = 4x + x2 Solving for variable 'x'. Reorder the terms: 21 + -4x + -1x2 = 4x + -4x + x2 + -1x2 Combine like terms: 4x + -4x = 0 21 + -4x + -1x2 = 0 + x2 + -1x2 21 + -4x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 21 + -4x + -1x2 = 0 Factor a trinomial. (3 + -1x)(7 + x) = 0Subproblem 1
Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3Subproblem 2
Set the factor '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7Solution
x = {3, -7}
| (b-4)6=b | | 3+8-35+11= | | 5(x+1)=3x+12 | | 9x-15=-63 | | 6x/2-2/2=11 | | x/7-2=-21 | | 5f/9-2/3=25/6 | | 6x-2/2=11 | | X+31.00=34 | | 6=-4v+5v | | 4x^2-7x+13=4x+7 | | 3(43-5y)/3+5y=43 | | 3x-7+2x+2=180 | | 3/4(3+2x)=2/3(4+x)-1 | | 6x^2-5x-4=0# | | X+31.00=65 | | 4x-2(4x+4)=24 | | 224-7x=29x+20 | | x^2+6x-35=-2x-2 | | 21=-2x+6 | | 4(2y-1)=3y-4 | | -6/3+6 | | x^2+1-4=6 | | 3+4-5-6-3c+4c-7+c-2c+5c= | | 3x+5y=43 | | x^2-12x+37=10 | | x/3+6=4 | | (2x+1)+(3x+6)=42 | | 20b^2+3b-2= | | 90x+80=-60+80x | | X+31.00=50 | | 0.2-0.2(y-50)=0.2y-1 |