If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 15x + 20 = 0 Reorder the terms: 20 + 15x + 2x2 = 0 Solving 20 + 15x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 10 + 7.5x + x2 = 0 Move the constant term to the right: Add '-10' to each side of the equation. 10 + 7.5x + -10 + x2 = 0 + -10 Reorder the terms: 10 + -10 + 7.5x + x2 = 0 + -10 Combine like terms: 10 + -10 = 0 0 + 7.5x + x2 = 0 + -10 7.5x + x2 = 0 + -10 Combine like terms: 0 + -10 = -10 7.5x + x2 = -10 The x term is 7.5x. Take half its coefficient (3.75). Square it (14.0625) and add it to both sides. Add '14.0625' to each side of the equation. 7.5x + 14.0625 + x2 = -10 + 14.0625 Reorder the terms: 14.0625 + 7.5x + x2 = -10 + 14.0625 Combine like terms: -10 + 14.0625 = 4.0625 14.0625 + 7.5x + x2 = 4.0625 Factor a perfect square on the left side: (x + 3.75)(x + 3.75) = 4.0625 Calculate the square root of the right side: 2.015564437 Break this problem into two subproblems by setting (x + 3.75) equal to 2.015564437 and -2.015564437.Subproblem 1
x + 3.75 = 2.015564437 Simplifying x + 3.75 = 2.015564437 Reorder the terms: 3.75 + x = 2.015564437 Solving 3.75 + x = 2.015564437 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.75' to each side of the equation. 3.75 + -3.75 + x = 2.015564437 + -3.75 Combine like terms: 3.75 + -3.75 = 0.00 0.00 + x = 2.015564437 + -3.75 x = 2.015564437 + -3.75 Combine like terms: 2.015564437 + -3.75 = -1.734435563 x = -1.734435563 Simplifying x = -1.734435563Subproblem 2
x + 3.75 = -2.015564437 Simplifying x + 3.75 = -2.015564437 Reorder the terms: 3.75 + x = -2.015564437 Solving 3.75 + x = -2.015564437 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.75' to each side of the equation. 3.75 + -3.75 + x = -2.015564437 + -3.75 Combine like terms: 3.75 + -3.75 = 0.00 0.00 + x = -2.015564437 + -3.75 x = -2.015564437 + -3.75 Combine like terms: -2.015564437 + -3.75 = -5.765564437 x = -5.765564437 Simplifying x = -5.765564437Solution
The solution to the problem is based on the solutions from the subproblems. x = {-1.734435563, -5.765564437}
| 9n+6=5n+10 | | 237.666599=3.14*r^2 | | v+9=23 | | 3x+y=48.9 | | 4x-19=x+11 | | -4+2x-4x=4 | | 0.60*w+1=-2 | | 6y+2+3y+9=14y-19 | | (7v-5w-4)(7v+6w)=0 | | 4x^2-15x-76=0 | | (x-2500)*0.01=x*0.0075 | | x*.1-25=x*.0075 | | 8.66c=(32+1.8t)f | | -9(n+3)= | | D+30=4d-6 | | X^2-32x-30=0 | | 48.9266=3.14*r^2 | | 3y-52=10.8-5y | | 109.3034=3.14r | | x^3-6x^2+17x-20=0 | | 36x+30y=742 | | 2x+1-5Y=131 | | 6x+7+6x=-5 | | x^4-10x^3+28x^2-15x-15=0 | | 30x+36y=742 | | 5x^2-75x=380 | | 12=8m+6 | | 193=149-x | | 163-x=79 | | 15=-w+272 | | -7(-6-6/7x)=12(x-3*1/2) | | 1*x^2=4064256 |