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 + -4x + 39 Reorder the terms: 0 = 39 + -4x + x2 Solving 0 = 39 + -4x + x2 Solving for variable 'x'. Combine like terms: 0 + -39 = -39 -39 + 4x + -1x2 = 39 + -4x + x2 + -39 + 4x + -1x2 Reorder the terms: -39 + 4x + -1x2 = 39 + -39 + -4x + 4x + x2 + -1x2 Combine like terms: 39 + -39 = 0 -39 + 4x + -1x2 = 0 + -4x + 4x + x2 + -1x2 -39 + 4x + -1x2 = -4x + 4x + x2 + -1x2 Combine like terms: -4x + 4x = 0 -39 + 4x + -1x2 = 0 + x2 + -1x2 -39 + 4x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -39 + 4x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 39 + -4x + x2 = 0 Move the constant term to the right: Add '-39' to each side of the equation. 39 + -4x + -39 + x2 = 0 + -39 Reorder the terms: 39 + -39 + -4x + x2 = 0 + -39 Combine like terms: 39 + -39 = 0 0 + -4x + x2 = 0 + -39 -4x + x2 = 0 + -39 Combine like terms: 0 + -39 = -39 -4x + x2 = -39 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = -39 + 4 Reorder the terms: 4 + -4x + x2 = -39 + 4 Combine like terms: -39 + 4 = -35 4 + -4x + x2 = -35 Factor a perfect square on the left side: (x + -2)(x + -2) = -35 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 16wv+12wv= | | 2x-11=x-15 | | 390/15 | | 69r-2(5x+7)=2x+5 | | 8m^2-18mn-5n^2= | | 12-2(x+5)=20 | | 3n/2=11 | | 4x-20=90 | | 21/2x-31/3=5/12 | | 1/3(6x-3)=3x+1 | | 9w^2-25= | | 7x+6x+3+9=8x+5+4x | | 21/2x-31/3=5/2 | | 1/2(350+150) | | 4(n-5)=15 | | 8x=y^2+6y+17 | | 12-2x-5=20 | | y=x^2-20x+100 | | 8x=y^2+6y+7 | | 2.6q-4.3-4.9q=3.3q-2.6 | | 2x*34=21 | | 2(147x+22)= | | (7x/10)+2=16 | | -5.2=w/4+1.2 | | b-7=11 | | 4/15t=-2/7 | | 3(4x-8)=4(2x-9) | | 7x+55=x+1 | | y=-1-1 | | 5x+2=-4x-16 | | 3(s-10)+4(s-18)=10 | | 18z+3= |