If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 21x2 + 19x + -7 = 0 Reorder the terms: -7 + 19x + 21x2 = 0 Solving -7 + 19x + 21x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 21 the coefficient of the squared term: Divide each side by '21'. -0.3333333333 + 0.9047619048x + x2 = 0 Move the constant term to the right: Add '0.3333333333' to each side of the equation. -0.3333333333 + 0.9047619048x + 0.3333333333 + x2 = 0 + 0.3333333333 Reorder the terms: -0.3333333333 + 0.3333333333 + 0.9047619048x + x2 = 0 + 0.3333333333 Combine like terms: -0.3333333333 + 0.3333333333 = 0.0000000000 0.0000000000 + 0.9047619048x + x2 = 0 + 0.3333333333 0.9047619048x + x2 = 0 + 0.3333333333 Combine like terms: 0 + 0.3333333333 = 0.3333333333 0.9047619048x + x2 = 0.3333333333 The x term is 0.9047619048x. Take half its coefficient (0.4523809524). Square it (0.2046485261) and add it to both sides. Add '0.2046485261' to each side of the equation. 0.9047619048x + 0.2046485261 + x2 = 0.3333333333 + 0.2046485261 Reorder the terms: 0.2046485261 + 0.9047619048x + x2 = 0.3333333333 + 0.2046485261 Combine like terms: 0.3333333333 + 0.2046485261 = 0.5379818594 0.2046485261 + 0.9047619048x + x2 = 0.5379818594 Factor a perfect square on the left side: (x + 0.4523809524)(x + 0.4523809524) = 0.5379818594 Calculate the square root of the right side: 0.733472467 Break this problem into two subproblems by setting (x + 0.4523809524) equal to 0.733472467 and -0.733472467.Subproblem 1
x + 0.4523809524 = 0.733472467 Simplifying x + 0.4523809524 = 0.733472467 Reorder the terms: 0.4523809524 + x = 0.733472467 Solving 0.4523809524 + x = 0.733472467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4523809524' to each side of the equation. 0.4523809524 + -0.4523809524 + x = 0.733472467 + -0.4523809524 Combine like terms: 0.4523809524 + -0.4523809524 = 0.0000000000 0.0000000000 + x = 0.733472467 + -0.4523809524 x = 0.733472467 + -0.4523809524 Combine like terms: 0.733472467 + -0.4523809524 = 0.2810915146 x = 0.2810915146 Simplifying x = 0.2810915146Subproblem 2
x + 0.4523809524 = -0.733472467 Simplifying x + 0.4523809524 = -0.733472467 Reorder the terms: 0.4523809524 + x = -0.733472467 Solving 0.4523809524 + x = -0.733472467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4523809524' to each side of the equation. 0.4523809524 + -0.4523809524 + x = -0.733472467 + -0.4523809524 Combine like terms: 0.4523809524 + -0.4523809524 = 0.0000000000 0.0000000000 + x = -0.733472467 + -0.4523809524 x = -0.733472467 + -0.4523809524 Combine like terms: -0.733472467 + -0.4523809524 = -1.1858534194 x = -1.1858534194 Simplifying x = -1.1858534194Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.2810915146, -1.1858534194}
| In(x)+In(2)=3 | | (5/6)x=24 | | (8-x)*(8x/6) | | -3n+4=10 | | Log(6x^2-6)=log(3x+3) | | x^4+x^3+6*x-36=0 | | 6(2n-5)=6 | | 8x+20=6x+12 | | x-2=2(x+3) | | 7x+27=2x-13 | | 15x-40=12x-70 | | 84a-36b-12c= | | 8x+15=2x+45 | | 84a-91-12c= | | 4y=-4x+4 | | 1/3(9x-3)=-1 | | x-25=36 | | 9/10x8/15 | | 3/4-12i | | 2x+3x+10=60 | | Un=3n-2 | | 5(w-6)=9w-6 | | 1.5x+1.5y=-7.5 | | f(x)=5x^3-7x+13 | | 1800/10000 | | 5x+8=7x+18 | | y+4=2.5(x-1) | | -2h-7-8=-27 | | y+4=2.5(x+1) | | p^2-100p+200=0 | | 3p+9q+15r= | | -1x+6=14 |