If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -8 + 7x + 7x2 = 0 Solving -8 + 7x + 7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -1.142857143 + x + x2 = 0 Move the constant term to the right: Add '1.142857143' to each side of the equation. -1.142857143 + x + 1.142857143 + x2 = 0 + 1.142857143 Reorder the terms: -1.142857143 + 1.142857143 + x + x2 = 0 + 1.142857143 Combine like terms: -1.142857143 + 1.142857143 = 0.000000000 0.000000000 + x + x2 = 0 + 1.142857143 x + x2 = 0 + 1.142857143 Combine like terms: 0 + 1.142857143 = 1.142857143 x + x2 = 1.142857143 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + x2 = 1.142857143 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = 1.142857143 + 0.25 Combine like terms: 1.142857143 + 0.25 = 1.392857143 1.25 + x2 = 1.392857143 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 1.392857143 Calculate the square root of the right side: 1.180193689 Break this problem into two subproblems by setting (x + 0.5) equal to 1.180193689 and -1.180193689.Subproblem 1
x + 0.5 = 1.180193689 Simplifying x + 0.5 = 1.180193689 Reorder the terms: 0.5 + x = 1.180193689 Solving 0.5 + x = 1.180193689 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 1.180193689 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.180193689 + -0.5 x = 1.180193689 + -0.5 Combine like terms: 1.180193689 + -0.5 = 0.680193689 x = 0.680193689 Simplifying x = 0.680193689Subproblem 2
x + 0.5 = -1.180193689 Simplifying x + 0.5 = -1.180193689 Reorder the terms: 0.5 + x = -1.180193689 Solving 0.5 + x = -1.180193689 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -1.180193689 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.180193689 + -0.5 x = -1.180193689 + -0.5 Combine like terms: -1.180193689 + -0.5 = -1.680193689 x = -1.680193689 Simplifying x = -1.680193689Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.680193689, -1.680193689}
| x^2-(a+3)*x+3a=0 | | (1x-4)(2x-1)= | | -1.12+x^8=0 | | 4W=5.12 | | 5(3a+5)-25a= | | x-1/5=-5/6 | | 3.2=X/2 | | -5=-6.8+4.2d | | 62.4=12300/v | | -4x+2x+16=x+7 | | 4(2m+6)+3(3+5m)=-59 | | 5k-3=21 | | (6x+5)(8x+6)= | | m^2+8=60 | | 2-9x+9x^2=0 | | 1/18(n-90)=1/15(n+75)-5 | | 17.92=7V | | 0.1x+0.3(100-x)=0.25 | | t=4s+3.01 | | 3(q-7)=2(10+g) | | 25(2*x^8)=56 | | 5(3a+5)-25e= | | 25+(2*x^8)=x^5+6 | | 21n^2-55n+14=0 | | S=c+mc | | 19x=o | | 12=2n-7 | | 5/2x+6*11/25-x2 | | 2x(2*x^8)=6 | | -5-8x-3x=4-8x | | (10x^2+19x+9)/(2x+3) | | 5/2x+6*11/25-x |