If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 6x2 + 9x + 21 = 0 Reorder the terms: 21 + 9x + 6x2 = 0 Solving 21 + 9x + 6x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(7 + 3x + 2x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(7 + 3x + 2x2)' equal to zero and attempt to solve: Simplifying 7 + 3x + 2x2 = 0 Solving 7 + 3x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 3.5 + 1.5x + x2 = 0 Move the constant term to the right: Add '-3.5' to each side of the equation. 3.5 + 1.5x + -3.5 + x2 = 0 + -3.5 Reorder the terms: 3.5 + -3.5 + 1.5x + x2 = 0 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + 1.5x + x2 = 0 + -3.5 1.5x + x2 = 0 + -3.5 Combine like terms: 0 + -3.5 = -3.5 1.5x + x2 = -3.5 The x term is 1.5x. Take half its coefficient (0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. 1.5x + 0.5625 + x2 = -3.5 + 0.5625 Reorder the terms: 0.5625 + 1.5x + x2 = -3.5 + 0.5625 Combine like terms: -3.5 + 0.5625 = -2.9375 0.5625 + 1.5x + x2 = -2.9375 Factor a perfect square on the left side: (x + 0.75)(x + 0.75) = -2.9375 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.
| 6x^2-9x-21=0 | | x=8x+14 | | -12y+-40=7y-2 | | 2n^2+8n-42=0 | | 7x-5+3x+15=5x+4y | | -7+8=11 | | 21+(-3)= | | 3x(7x-4)+6x-(13-24x^2)= | | 8x(9)x(2)x(-1)= | | 6x+12=2x-6 | | 14/3b+4/5=15/7b-1/5b-1/3 | | 7x-5+3x+15=5x+4 | | 4/5x=4 | | x=4x+9 | | 37/7m-9/10=4/5m | | -9n+8=-21n | | x^3-8x^2+16x-128=0 | | 36x(-4)= | | 5/2/7m-9/10=4/5m | | K^2+6k-16=0 | | (-48)/2/19 | | 52/7m-9/10=4/5m | | X/7=28 | | 6d-9=1d+1 | | 567+(-100)= | | 2(3.6+-0.2y)-y=3 | | -48/2/19 | | 5x^2+40x+80=o | | 9k-4=14 | | 3/4+1/4=7/8*r+3/8*r | | (3y+1)*27= | | 35x(-3)= |