If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 9x2 + 15x + -20 = 0 Reorder the terms: -20 + 15x + 9x2 = 0 Solving -20 + 15x + 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'. -2.222222222 + 1.666666667x + x2 = 0 Move the constant term to the right: Add '2.222222222' to each side of the equation. -2.222222222 + 1.666666667x + 2.222222222 + x2 = 0 + 2.222222222 Reorder the terms: -2.222222222 + 2.222222222 + 1.666666667x + x2 = 0 + 2.222222222 Combine like terms: -2.222222222 + 2.222222222 = 0.000000000 0.000000000 + 1.666666667x + x2 = 0 + 2.222222222 1.666666667x + x2 = 0 + 2.222222222 Combine like terms: 0 + 2.222222222 = 2.222222222 1.666666667x + x2 = 2.222222222 The x term is 1.666666667x. Take half its coefficient (0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. 1.666666667x + 0.6944444447 + x2 = 2.222222222 + 0.6944444447 Reorder the terms: 0.6944444447 + 1.666666667x + x2 = 2.222222222 + 0.6944444447 Combine like terms: 2.222222222 + 0.6944444447 = 2.9166666667 0.6944444447 + 1.666666667x + x2 = 2.9166666667 Factor a perfect square on the left side: (x + 0.8333333335)(x + 0.8333333335) = 2.9166666667 Calculate the square root of the right side: 1.707825128 Break this problem into two subproblems by setting (x + 0.8333333335) equal to 1.707825128 and -1.707825128.Subproblem 1
x + 0.8333333335 = 1.707825128 Simplifying x + 0.8333333335 = 1.707825128 Reorder the terms: 0.8333333335 + x = 1.707825128 Solving 0.8333333335 + x = 1.707825128 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 1.707825128 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 1.707825128 + -0.8333333335 x = 1.707825128 + -0.8333333335 Combine like terms: 1.707825128 + -0.8333333335 = 0.8744917945 x = 0.8744917945 Simplifying x = 0.8744917945Subproblem 2
x + 0.8333333335 = -1.707825128 Simplifying x + 0.8333333335 = -1.707825128 Reorder the terms: 0.8333333335 + x = -1.707825128 Solving 0.8333333335 + x = -1.707825128 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -1.707825128 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -1.707825128 + -0.8333333335 x = -1.707825128 + -0.8333333335 Combine like terms: -1.707825128 + -0.8333333335 = -2.5411584615 x = -2.5411584615 Simplifying x = -2.5411584615Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.8744917945, -2.5411584615}
| -12=3(7-d) | | 2y-4=x+6 | | 1/3-5=13 | | -45+14n+n=0 | | 5x-5=9x+5 | | 9x+5=5x-5 | | Y=m(x-3)+6 | | (9y+11)+(6y+3)=119 | | 1/2(x/3-x/2)+1/9=1/2(1/2-x/3) | | (m-1)*x^2-6x=1 | | 3L+2W=1212 | | 1.2(b-12)=96 | | 4(3-3p)=-15p+27 | | (9x-3)(4x+7)=0 | | -(2)2-43= | | 7x/4-3x/8 | | (x+8)(x-2)=0 | | 5x+10x=1x | | 7+x=161 | | -288=-6a-6(-8+6a) | | 10x+9(4x-5)=227 | | 2-(-2x+1)-x-3/2=2x/3-5x-3/12+3x | | -288=-69-6(-8+69) | | 10y+5(6y-2)=270 | | 4(7x-15)=80 | | log(2)3x+2=1 | | 4(7x-15)=10 | | 40+30x=300 | | 10y+8(5y-2)=334 | | (3x-3)+(6x-2)=5x-5 | | tan(2x)+-2cos(x)=0 | | 9A/72 |