If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 3x2 + 15x + -80 = 0 Reorder the terms: -80 + 15x + 3x2 = 0 Solving -80 + 15x + 3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -26.66666667 + 5x + x2 = 0 Move the constant term to the right: Add '26.66666667' to each side of the equation. -26.66666667 + 5x + 26.66666667 + x2 = 0 + 26.66666667 Reorder the terms: -26.66666667 + 26.66666667 + 5x + x2 = 0 + 26.66666667 Combine like terms: -26.66666667 + 26.66666667 = 0.00000000 0.00000000 + 5x + x2 = 0 + 26.66666667 5x + x2 = 0 + 26.66666667 Combine like terms: 0 + 26.66666667 = 26.66666667 5x + x2 = 26.66666667 The x term is 5x. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5x + 6.25 + x2 = 26.66666667 + 6.25 Reorder the terms: 6.25 + 5x + x2 = 26.66666667 + 6.25 Combine like terms: 26.66666667 + 6.25 = 32.91666667 6.25 + 5x + x2 = 32.91666667 Factor a perfect square on the left side: (x + 2.5)(x + 2.5) = 32.91666667 Calculate the square root of the right side: 5.737304826 Break this problem into two subproblems by setting (x + 2.5) equal to 5.737304826 and -5.737304826.Subproblem 1
x + 2.5 = 5.737304826 Simplifying x + 2.5 = 5.737304826 Reorder the terms: 2.5 + x = 5.737304826 Solving 2.5 + x = 5.737304826 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 5.737304826 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 5.737304826 + -2.5 x = 5.737304826 + -2.5 Combine like terms: 5.737304826 + -2.5 = 3.237304826 x = 3.237304826 Simplifying x = 3.237304826Subproblem 2
x + 2.5 = -5.737304826 Simplifying x + 2.5 = -5.737304826 Reorder the terms: 2.5 + x = -5.737304826 Solving 2.5 + x = -5.737304826 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -5.737304826 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -5.737304826 + -2.5 x = -5.737304826 + -2.5 Combine like terms: -5.737304826 + -2.5 = -8.237304826 x = -8.237304826 Simplifying x = -8.237304826Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.237304826, -8.237304826}
| -2(3x-4)+5x=-7(x+1) | | 9x-(7x-5)=23 | | -6x+4=12-x | | .75n^2+4n+0.625=3n+.5 | | 5w^2+2w^2+25w+10=0 | | 3x^2=x^2+14 | | 4+0.7k=4 | | 5(u-4)-8=-4(-4u+9)-u | | X-3/7=450 | | 3x+10-x=18 | | -5(x+7)=6x+42 | | 3x^2-14=x^2 | | 5z+4z=8z+7 | | 33/(3x-2)=5.5 | | -7x+42=-2(x-1) | | (2-5I)+(3-4I)=0 | | 16x^2-40x+10=0 | | -8(u-2)=-4u+8 | | .12(x)=300 | | 12x-8=39-x | | -4=3u+2(u-7) | | 18x-9=12x-15 | | -17=4y+5 | | X^3-2x^3-9x+18=0 | | 7=-5x+2(x+8) | | 7-7x-2=-45+5x-10 | | 4/4/2 | | 60y^3-39y^2+6y=0 | | -2(x+6)=x-20 | | 6x^6-6x^5-36x^4= | | 3(2q+5)=6(7+4) | | 8(w-3)-4w=-16 |