If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4x2 + 15x + -16 = 0 Reorder the terms: -16 + 15x + 4x2 = 0 Solving -16 + 15x + 4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -4 + 3.75x + x2 = 0 Move the constant term to the right: Add '4' to each side of the equation. -4 + 3.75x + 4 + x2 = 0 + 4 Reorder the terms: -4 + 4 + 3.75x + x2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 3.75x + x2 = 0 + 4 3.75x + x2 = 0 + 4 Combine like terms: 0 + 4 = 4 3.75x + x2 = 4 The x term is 3.75x. Take half its coefficient (1.875). Square it (3.515625) and add it to both sides. Add '3.515625' to each side of the equation. 3.75x + 3.515625 + x2 = 4 + 3.515625 Reorder the terms: 3.515625 + 3.75x + x2 = 4 + 3.515625 Combine like terms: 4 + 3.515625 = 7.515625 3.515625 + 3.75x + x2 = 7.515625 Factor a perfect square on the left side: (x + 1.875)(x + 1.875) = 7.515625 Calculate the square root of the right side: 2.741464025 Break this problem into two subproblems by setting (x + 1.875) equal to 2.741464025 and -2.741464025.Subproblem 1
x + 1.875 = 2.741464025 Simplifying x + 1.875 = 2.741464025 Reorder the terms: 1.875 + x = 2.741464025 Solving 1.875 + x = 2.741464025 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.875' to each side of the equation. 1.875 + -1.875 + x = 2.741464025 + -1.875 Combine like terms: 1.875 + -1.875 = 0.000 0.000 + x = 2.741464025 + -1.875 x = 2.741464025 + -1.875 Combine like terms: 2.741464025 + -1.875 = 0.866464025 x = 0.866464025 Simplifying x = 0.866464025Subproblem 2
x + 1.875 = -2.741464025 Simplifying x + 1.875 = -2.741464025 Reorder the terms: 1.875 + x = -2.741464025 Solving 1.875 + x = -2.741464025 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.875' to each side of the equation. 1.875 + -1.875 + x = -2.741464025 + -1.875 Combine like terms: 1.875 + -1.875 = 0.000 0.000 + x = -2.741464025 + -1.875 x = -2.741464025 + -1.875 Combine like terms: -2.741464025 + -1.875 = -4.616464025 x = -4.616464025 Simplifying x = -4.616464025Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.866464025, -4.616464025}
| 3x+2(x-4)=47 | | 8x-2+x=16 | | 2m+9=15 | | -x^2+2x-12=0 | | -(4x+3)=3(3x-4) | | -x^2+2-12= | | 4(x-2)-3(x-1)=60 | | 4x-2-3x-1=60 | | 3x-2-4x-1=60 | | 3x+5x-70= | | 20r^2-160r^2=0 | | 3x-75+x+15+2x-30= | | 6z-4=26 | | 3m-5=22 | | 10q-40=0 | | 6u+4u+20+90=360 | | x-2/3-x-1/4=5 | | 7k+2=37 | | 7.9v-6.9v+2.9=-5.6 | | 9f+f=360 | | 1/3=x-2/3 | | 3s+2s=90 | | 2=3u+19 | | 3x+46= | | 6c+1=25 | | 6u+4u+20+90=180 | | 5x+32= | | .75-.25b=-3b | | 6e-15+e=90 | | 4n+3=27n | | 2+3h=5 | | 6e-15=90 |