If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + 8x + -8 = 0 Reorder the terms: -8 + 8x + 7x2 = 0 Solving -8 + 8x + 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 + 1.142857143x + x2 = 0 Move the constant term to the right: Add '1.142857143' to each side of the equation. -1.142857143 + 1.142857143x + 1.142857143 + x2 = 0 + 1.142857143 Reorder the terms: -1.142857143 + 1.142857143 + 1.142857143x + x2 = 0 + 1.142857143 Combine like terms: -1.142857143 + 1.142857143 = 0.000000000 0.000000000 + 1.142857143x + x2 = 0 + 1.142857143 1.142857143x + x2 = 0 + 1.142857143 Combine like terms: 0 + 1.142857143 = 1.142857143 1.142857143x + x2 = 1.142857143 The x term is 1.142857143x. Take half its coefficient (0.5714285715). Square it (0.3265306123) and add it to both sides. Add '0.3265306123' to each side of the equation. 1.142857143x + 0.3265306123 + x2 = 1.142857143 + 0.3265306123 Reorder the terms: 0.3265306123 + 1.142857143x + x2 = 1.142857143 + 0.3265306123 Combine like terms: 1.142857143 + 0.3265306123 = 1.4693877553 0.3265306123 + 1.142857143x + x2 = 1.4693877553 Factor a perfect square on the left side: (x + 0.5714285715)(x + 0.5714285715) = 1.4693877553 Calculate the square root of the right side: 1.212183054 Break this problem into two subproblems by setting (x + 0.5714285715) equal to 1.212183054 and -1.212183054.Subproblem 1
x + 0.5714285715 = 1.212183054 Simplifying x + 0.5714285715 = 1.212183054 Reorder the terms: 0.5714285715 + x = 1.212183054 Solving 0.5714285715 + x = 1.212183054 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5714285715' to each side of the equation. 0.5714285715 + -0.5714285715 + x = 1.212183054 + -0.5714285715 Combine like terms: 0.5714285715 + -0.5714285715 = 0.0000000000 0.0000000000 + x = 1.212183054 + -0.5714285715 x = 1.212183054 + -0.5714285715 Combine like terms: 1.212183054 + -0.5714285715 = 0.6407544825 x = 0.6407544825 Simplifying x = 0.6407544825Subproblem 2
x + 0.5714285715 = -1.212183054 Simplifying x + 0.5714285715 = -1.212183054 Reorder the terms: 0.5714285715 + x = -1.212183054 Solving 0.5714285715 + x = -1.212183054 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5714285715' to each side of the equation. 0.5714285715 + -0.5714285715 + x = -1.212183054 + -0.5714285715 Combine like terms: 0.5714285715 + -0.5714285715 = 0.0000000000 0.0000000000 + x = -1.212183054 + -0.5714285715 x = -1.212183054 + -0.5714285715 Combine like terms: -1.212183054 + -0.5714285715 = -1.7836116255 x = -1.7836116255 Simplifying x = -1.7836116255Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.6407544825, -1.7836116255}
| 5x^2-15-45=0 | | 100x^3-65x^2+10x=0 | | 3n+2m-6=4m+n | | 2a+4(3a+2)=50 | | -4y+8=16 | | x^4+2x^3-2x-1=0 | | -4y+8=11 | | 2a+3b=x | | 6-8x=10x+20 | | (x+16)=-32 | | 5x-13=15x-163 | | 3b-8=7b-2-4b | | 4(x-9)-7=17 | | =2a+3b | | (x+11)+3=-3 | | B=-2(7-6) | | (x+2)+8=0 | | .009x^2-.08x+.14=0 | | 25x^2+4y^2-9=0 | | 6+25s-8s=18 | | 9x+9=62 | | -6x+8=12 | | (x)=1 | | -3x+3=-18 | | -3x-=-1 | | 4(2x-1)-3(x-5)= | | 13x-2=9x^2 | | 3x^2-x-48=0 | | 5.1x=-15.3 | | 1(x+5)=3 | | x^6+x^4+x^2-1=0 | | 3(x-2)+5=18 |