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 + 6.5x + 13 Reorder the terms: 0 = 13 + 6.5x + x2 Solving 0 = 13 + 6.5x + x2 Solving for variable 'x'. Combine like terms: 0 + -13 = -13 -13 + -6.5x + -1x2 = 13 + 6.5x + x2 + -13 + -6.5x + -1x2 Reorder the terms: -13 + -6.5x + -1x2 = 13 + -13 + 6.5x + -6.5x + x2 + -1x2 Combine like terms: 13 + -13 = 0 -13 + -6.5x + -1x2 = 0 + 6.5x + -6.5x + x2 + -1x2 -13 + -6.5x + -1x2 = 6.5x + -6.5x + x2 + -1x2 Combine like terms: 6.5x + -6.5x = 0.0 -13 + -6.5x + -1x2 = 0.0 + x2 + -1x2 -13 + -6.5x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -13 + -6.5x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 13 + 6.5x + x2 = 0 Move the constant term to the right: Add '-13' to each side of the equation. 13 + 6.5x + -13 + x2 = 0 + -13 Reorder the terms: 13 + -13 + 6.5x + x2 = 0 + -13 Combine like terms: 13 + -13 = 0 0 + 6.5x + x2 = 0 + -13 6.5x + x2 = 0 + -13 Combine like terms: 0 + -13 = -13 6.5x + x2 = -13 The x term is 6.5x. Take half its coefficient (3.25). Square it (10.5625) and add it to both sides. Add '10.5625' to each side of the equation. 6.5x + 10.5625 + x2 = -13 + 10.5625 Reorder the terms: 10.5625 + 6.5x + x2 = -13 + 10.5625 Combine like terms: -13 + 10.5625 = -2.4375 10.5625 + 6.5x + x2 = -2.4375 Factor a perfect square on the left side: (x + 3.25)(x + 3.25) = -2.4375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| -8x-9=-8x(x-9) | | 62m-54= | | 32x+48x= | | 5x+6=5x-28 | | P(E)=9/50 | | 3-(5x-2)=9 | | 3x-19=2x+1 | | -2y+3(-2)=6 | | 38.4=1.6*3H^(3/2) | | [5f-7]=11 | | 3/5r=4/5 | | 2xd-3y=-1 | | 16t^2-32t-160=0 | | -3/8-7/8 | | 30x+40y=20000 | | [x+1]=7 | | n^2-10=0 | | 30x+40y=10000 | | cosx=0.33 | | 27=58y | | [6m+9]=13 | | 90=.5x | | (y^2/16)=-4 | | y/x-3 | | 19h-14h+h=12 | | 5/10^2x=7 | | 7r+18+3r=r+6r+21 | | d-d+2d=12 | | 20x-19x+2x-x=8 | | 7q=17-2q | | 8cos^2x-10cosx+1=0 | | 11q+3q-4q-8q+4q=18 |