If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 9x2 + 4x + -9 = 0 Reorder the terms: -9 + 4x + 9x2 = 0 Solving -9 + 4x + 9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. -1 + 0.4444444444x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + 0.4444444444x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + 0.4444444444x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 0.4444444444x + x2 = 0 + 1 0.4444444444x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 0.4444444444x + x2 = 1 The x term is 0.4444444444x. Take half its coefficient (0.2222222222). Square it (0.04938271604) and add it to both sides. Add '0.04938271604' to each side of the equation. 0.4444444444x + 0.04938271604 + x2 = 1 + 0.04938271604 Reorder the terms: 0.04938271604 + 0.4444444444x + x2 = 1 + 0.04938271604 Combine like terms: 1 + 0.04938271604 = 1.04938271604 0.04938271604 + 0.4444444444x + x2 = 1.04938271604 Factor a perfect square on the left side: (x + 0.2222222222)(x + 0.2222222222) = 1.04938271604 Calculate the square root of the right side: 1.024393829 Break this problem into two subproblems by setting (x + 0.2222222222) equal to 1.024393829 and -1.024393829.Subproblem 1
x + 0.2222222222 = 1.024393829 Simplifying x + 0.2222222222 = 1.024393829 Reorder the terms: 0.2222222222 + x = 1.024393829 Solving 0.2222222222 + x = 1.024393829 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2222222222' to each side of the equation. 0.2222222222 + -0.2222222222 + x = 1.024393829 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + x = 1.024393829 + -0.2222222222 x = 1.024393829 + -0.2222222222 Combine like terms: 1.024393829 + -0.2222222222 = 0.8021716068 x = 0.8021716068 Simplifying x = 0.8021716068Subproblem 2
x + 0.2222222222 = -1.024393829 Simplifying x + 0.2222222222 = -1.024393829 Reorder the terms: 0.2222222222 + x = -1.024393829 Solving 0.2222222222 + x = -1.024393829 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2222222222' to each side of the equation. 0.2222222222 + -0.2222222222 + x = -1.024393829 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + x = -1.024393829 + -0.2222222222 x = -1.024393829 + -0.2222222222 Combine like terms: -1.024393829 + -0.2222222222 = -1.2466160512 x = -1.2466160512 Simplifying x = -1.2466160512Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.8021716068, -1.2466160512}
| 9n^2+4=20 | | 20y=-50x+200 | | 4(x+6)=x+36 | | 5-19x=25 | | 12-3=7x+17 | | 11n(2-9)=5n | | 519x=25 | | 519x=25 | | 9x+6x-3=2x+15 | | t+.25=-4.12 | | r^2-12r-32=0 | | 8.8=-2(v+2.2) | | 0.1(-47-7y)+0.7y=-4.7 | | 0.2x^2-0.6x+1.5=x | | -y+9(z-16y)-25z= | | 176428634585=365381-45637176715+45618965565748393874 | | -8.2+0.4x=-5 | | 14-4x=-30 | | 18x/(8x-7)=67 | | 2x+18y=36(-5.2) | | 9(3x+2)-10x=12-7 | | 3x+3=1.53 | | 6z-8=80 | | 0.2x-0.9y=9 | | 3y-8=7y+3 | | 7/4x+3=1/4x+1/4x | | 15a^2+45=0 | | -2x+4y=-13 | | -8z-5=25 | | n+12=34 | | 8r^2-16r-40=0 | | 7+3x=53 |