If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 0 = x2 + -9x + 28 Reorder the terms: 0 = 28 + -9x + x2 Solving 0 = 28 + -9x + x2 Solving for variable 'x'. Combine like terms: 0 + -28 = -28 -28 + 9x + -1x2 = 28 + -9x + x2 + -28 + 9x + -1x2 Reorder the terms: -28 + 9x + -1x2 = 28 + -28 + -9x + 9x + x2 + -1x2 Combine like terms: 28 + -28 = 0 -28 + 9x + -1x2 = 0 + -9x + 9x + x2 + -1x2 -28 + 9x + -1x2 = -9x + 9x + x2 + -1x2 Combine like terms: -9x + 9x = 0 -28 + 9x + -1x2 = 0 + x2 + -1x2 -28 + 9x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -28 + 9x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 28 + -9x + x2 = 0 Move the constant term to the right: Add '-28' to each side of the equation. 28 + -9x + -28 + x2 = 0 + -28 Reorder the terms: 28 + -28 + -9x + x2 = 0 + -28 Combine like terms: 28 + -28 = 0 0 + -9x + x2 = 0 + -28 -9x + x2 = 0 + -28 Combine like terms: 0 + -28 = -28 -9x + x2 = -28 The x term is -9x. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9x + 20.25 + x2 = -28 + 20.25 Reorder the terms: 20.25 + -9x + x2 = -28 + 20.25 Combine like terms: -28 + 20.25 = -7.75 20.25 + -9x + x2 = -7.75 Factor a perfect square on the left side: (x + -4.5)(x + -4.5) = -7.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
| X=21-2y | | 2b+3t=44 | | 3x-3=15+2x | | x-13=72 | | 0.11-0.03(x+3)=-0.04(3-x) | | 5x-179=61-10x | | 19.7=21.6+f | | 5.5x+6x=37 | | v^2+15v+44=0 | | 0.3z-3-0.5z=-6 | | 15h-42=-6h-39 | | log(4)*(5x+3)=1 | | r=9cm | | -6x+7=5x+40 | | m^2+m-35=0 | | 7t^2-22t+7=0 | | (x+20)+3x=90 | | 2x+4(x-3)=12 | | 12=-7+v | | -56-6x-5x=43 | | -16t^2-11t+120=0 | | -16t^2-11t+120=h | | 14+23= | | 0=8-3(6-6x) | | .5y+(2x+5)=180 | | f(3)=12+3x | | s+8=-13.5 | | 4x-6x-7=7 | | 2x+9+7x-4=4x+7 | | 11x-154=-5x+54 | | 3(2y-3)=5(y+4) | | 30+8+7+10+25-4+9+25-3+6-5=108 |