If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 3x2 + -9x = -21 Reorder the terms: -9x + 3x2 = -21 Solving -9x + 3x2 = -21 Solving for variable 'x'. Reorder the terms: 21 + -9x + 3x2 = -21 + 21 Combine like terms: -21 + 21 = 0 21 + -9x + 3x2 = 0 Factor out the Greatest Common Factor (GCF), '3'. 3(7 + -3x + x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(7 + -3x + x2)' equal to zero and attempt to solve: Simplifying 7 + -3x + x2 = 0 Solving 7 + -3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-7' to each side of the equation. 7 + -3x + -7 + x2 = 0 + -7 Reorder the terms: 7 + -7 + -3x + x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3x + x2 = 0 + -7 -3x + x2 = 0 + -7 Combine like terms: 0 + -7 = -7 -3x + x2 = -7 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = -7 + 2.25 Reorder the terms: 2.25 + -3x + x2 = -7 + 2.25 Combine like terms: -7 + 2.25 = -4.75 2.25 + -3x + x2 = -4.75 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = -4.75 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.
| -2(2)-4y=-8 | | .7(x-3.1)=3.78 | | .04(x-2)=.48 | | 110+(-40)=40+(-40) | | -(6xy-8)+4(5xy+7)= | | .27(x+2)=1.89 | | 5(2x+3)=10-5x | | .64(x-3)=4.16 | | -4.9t^2-2.3t+5=0 | | 3.87n=4+2.47n | | .48(x-1)=-2.88 | | 2x+36=6x+2 | | 4N=7N-12 | | -5-3=3+5m | | 5z^2-33z+18=0 | | .4(x+3)=3.2 | | 6x=2(x+8) | | 9x^2+138x-189=0 | | r=4t+5 | | -2x^2+8= | | f-5-3f+7y= | | .15x+.65=12.6 | | 7x^2+7x-504=0 | | 36y^4-y=0 | | -7x-4(-x+4)=-34 | | .48x-1.52=-5.6 | | -5=20+5x | | .6x-4=5.6 | | .75x-3.5=2.5 | | 5x+5(-2x-3)=45 | | -7(x+1)-13=39+4 | | 264-7x=38x+19 |