If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -15 + 22x + 28x2 = 0 Solving -15 + 22x + 28x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 28 the coefficient of the squared term: Divide each side by '28'. -0.5357142857 + 0.7857142857x + x2 = 0 Move the constant term to the right: Add '0.5357142857' to each side of the equation. -0.5357142857 + 0.7857142857x + 0.5357142857 + x2 = 0 + 0.5357142857 Reorder the terms: -0.5357142857 + 0.5357142857 + 0.7857142857x + x2 = 0 + 0.5357142857 Combine like terms: -0.5357142857 + 0.5357142857 = 0.0000000000 0.0000000000 + 0.7857142857x + x2 = 0 + 0.5357142857 0.7857142857x + x2 = 0 + 0.5357142857 Combine like terms: 0 + 0.5357142857 = 0.5357142857 0.7857142857x + x2 = 0.5357142857 The x term is 0.7857142857x. Take half its coefficient (0.3928571429). Square it (0.1543367347) and add it to both sides. Add '0.1543367347' to each side of the equation. 0.7857142857x + 0.1543367347 + x2 = 0.5357142857 + 0.1543367347 Reorder the terms: 0.1543367347 + 0.7857142857x + x2 = 0.5357142857 + 0.1543367347 Combine like terms: 0.5357142857 + 0.1543367347 = 0.6900510204 0.1543367347 + 0.7857142857x + x2 = 0.6900510204 Factor a perfect square on the left side: (x + 0.3928571429)(x + 0.3928571429) = 0.6900510204 Calculate the square root of the right side: 0.830693096 Break this problem into two subproblems by setting (x + 0.3928571429) equal to 0.830693096 and -0.830693096.Subproblem 1
x + 0.3928571429 = 0.830693096 Simplifying x + 0.3928571429 = 0.830693096 Reorder the terms: 0.3928571429 + x = 0.830693096 Solving 0.3928571429 + x = 0.830693096 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3928571429' to each side of the equation. 0.3928571429 + -0.3928571429 + x = 0.830693096 + -0.3928571429 Combine like terms: 0.3928571429 + -0.3928571429 = 0.0000000000 0.0000000000 + x = 0.830693096 + -0.3928571429 x = 0.830693096 + -0.3928571429 Combine like terms: 0.830693096 + -0.3928571429 = 0.4378359531 x = 0.4378359531 Simplifying x = 0.4378359531Subproblem 2
x + 0.3928571429 = -0.830693096 Simplifying x + 0.3928571429 = -0.830693096 Reorder the terms: 0.3928571429 + x = -0.830693096 Solving 0.3928571429 + x = -0.830693096 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3928571429' to each side of the equation. 0.3928571429 + -0.3928571429 + x = -0.830693096 + -0.3928571429 Combine like terms: 0.3928571429 + -0.3928571429 = 0.0000000000 0.0000000000 + x = -0.830693096 + -0.3928571429 x = -0.830693096 + -0.3928571429 Combine like terms: -0.830693096 + -0.3928571429 = -1.2235502389 x = -1.2235502389 Simplifying x = -1.2235502389Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.4378359531, -1.2235502389}
| d^2=1.4 | | 6+2n=14 | | %is144=12 | | 9.11=d+1.91 | | 2x+26=x | | 7v+60= | | x+2=64 | | 55x+200=60x+50 | | 3x-7+x-2=-3x+11-8+5x | | 3(2+4x)-6=-12 | | -2x+16=7(6-4x) | | v+3=12.5 | | 4x+8.1=16.5 | | 9(9-4)=18 | | 3m-8=2m+12 | | q+2.6=19.42 | | z^3=3.8 | | 3(x^2+8x-9)=0 | | .2x-3.2=2.2 | | 9^x=1/√27 | | 4+3x+x+6=16 | | 12x-5y=34 | | 8x=7.5x+16 | | 3y+2y-22=23 | | -5+9j=4j | | 2=3/2-7 | | 8(3m+6)=9(2m-4) | | 18/2(3)=x | | 4/84=1/n | | g^2=1.9 | | 7a-(b)=-6b+14 | | 5a*8a= |