If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 3x2 + -4x + 21 = 0 Reorder the terms: 21 + -4x + 3x2 = 0 Solving 21 + -4x + 3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 7 + -1.333333333x + x2 = 0 Move the constant term to the right: Add '-7' to each side of the equation. 7 + -1.333333333x + -7 + x2 = 0 + -7 Reorder the terms: 7 + -7 + -1.333333333x + x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1.333333333x + x2 = 0 + -7 -1.333333333x + x2 = 0 + -7 Combine like terms: 0 + -7 = -7 -1.333333333x + x2 = -7 The x term is -1.333333333x. Take half its coefficient (-0.6666666665). Square it (0.4444444442) and add it to both sides. Add '0.4444444442' to each side of the equation. -1.333333333x + 0.4444444442 + x2 = -7 + 0.4444444442 Reorder the terms: 0.4444444442 + -1.333333333x + x2 = -7 + 0.4444444442 Combine like terms: -7 + 0.4444444442 = -6.5555555558 0.4444444442 + -1.333333333x + x2 = -6.5555555558 Factor a perfect square on the left side: (x + -0.6666666665)(x + -0.6666666665) = -6.5555555558 Can't calculate square root of the right side. The solution to this equation could not be determined.
| -18=x-6x-8 | | 5x+4=10x-46 | | 3f*7= | | -42=-7x+3x-2 | | 6x^2-24x+48=0 | | 2x^2-11x=16 | | 4x^2+13x=10 | | 3x+10+x=18 | | 9x+20=4x-25 | | 7y+7=14y+7 | | y=x^2-5x+6 | | -6x+12=40-2x | | 2(3x+11)=5(x+7) | | 5x+12=-103 | | 3(6x+4)=58 | | 5(9+6x)=105 | | -7y=42 | | 3x+6=8+x | | 2x-15=8x-3 | | 7(8+x)=28 | | -5x+9-x=-45 | | 5(7+7x)=-105 | | -5(-5+6x)=-305 | | 25x^2-20x-3=0 | | r^3-64=0 | | -5(-10+4x)=10 | | 8+3x+2x=43 | | 3(-4x+4)=84 | | 3x+8=5x+18 | | 14x-13=8x-7 | | 7x-4=4x+17 | | -2x+10=-38+4x |