If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -4x2 + -4x + -7 = x Reorder the terms: -7 + -4x + -4x2 = x Solving -7 + -4x + -4x2 = x Solving for variable 'x'. Reorder the terms: -7 + -4x + -1x + -4x2 = x + -1x Combine like terms: -4x + -1x = -5x -7 + -5x + -4x2 = x + -1x Combine like terms: x + -1x = 0 -7 + -5x + -4x2 = 0 Factor out the Greatest Common Factor (GCF), '-1'. -1(7 + 5x + 4x2) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(7 + 5x + 4x2)' equal to zero and attempt to solve: Simplifying 7 + 5x + 4x2 = 0 Solving 7 + 5x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 1.75 + 1.25x + x2 = 0 Move the constant term to the right: Add '-1.75' to each side of the equation. 1.75 + 1.25x + -1.75 + x2 = 0 + -1.75 Reorder the terms: 1.75 + -1.75 + 1.25x + x2 = 0 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + 1.25x + x2 = 0 + -1.75 1.25x + x2 = 0 + -1.75 Combine like terms: 0 + -1.75 = -1.75 1.25x + x2 = -1.75 The x term is 1.25x. Take half its coefficient (0.625). Square it (0.390625) and add it to both sides. Add '0.390625' to each side of the equation. 1.25x + 0.390625 + x2 = -1.75 + 0.390625 Reorder the terms: 0.390625 + 1.25x + x2 = -1.75 + 0.390625 Combine like terms: -1.75 + 0.390625 = -1.359375 0.390625 + 1.25x + x2 = -1.359375 Factor a perfect square on the left side: (x + 0.625)(x + 0.625) = -1.359375 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(4x-5)+x+7+4x+1=180 | | -4x^2-4x-7=-31 | | 23x+11y=17 | | 90+2x+7x-9=180 | | a^-5/64p^11 | | -4(4y-8)+2(3y+5)= | | 5(2y-3)=12 | | 4[0.5-2.5]=0 | | 2x+3x-9=36 | | 25-(x/3)=x/2 | | 2.5=7 | | x-20/x=1 | | 95/100 | | 1/4x-8=48 | | 18-[x]=10 | | 50/x=1.43 | | 2x-75= | | 8x+x^2-3=0 | | W*24=24 | | 33=-19k-14k | | B-35=3 | | 3u=-18 | | 2(5)+4(25)=m | | 2(5)+4+(25)=m | | cos(x)+cos(2x)+cos(3x)+cos(4x)=0.5 | | 2(5)+4+(25)=n | | 3/4(x-3)=-15 | | -325/5= | | -106-7x=146+11x | | 125/-5=o | | -18.2-s=14.6 | | 3x+2=6x-11 |