If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 5x2 + 36x + -66 = 0 Reorder the terms: -66 + 36x + 5x2 = 0 Solving -66 + 36x + 5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -13.2 + 7.2x + x2 = 0 Move the constant term to the right: Add '13.2' to each side of the equation. -13.2 + 7.2x + 13.2 + x2 = 0 + 13.2 Reorder the terms: -13.2 + 13.2 + 7.2x + x2 = 0 + 13.2 Combine like terms: -13.2 + 13.2 = 0.0 0.0 + 7.2x + x2 = 0 + 13.2 7.2x + x2 = 0 + 13.2 Combine like terms: 0 + 13.2 = 13.2 7.2x + x2 = 13.2 The x term is 7.2x. Take half its coefficient (3.6). Square it (12.96) and add it to both sides. Add '12.96' to each side of the equation. 7.2x + 12.96 + x2 = 13.2 + 12.96 Reorder the terms: 12.96 + 7.2x + x2 = 13.2 + 12.96 Combine like terms: 13.2 + 12.96 = 26.16 12.96 + 7.2x + x2 = 26.16 Factor a perfect square on the left side: (x + 3.6)(x + 3.6) = 26.16 Calculate the square root of the right side: 5.114684741 Break this problem into two subproblems by setting (x + 3.6) equal to 5.114684741 and -5.114684741.Subproblem 1
x + 3.6 = 5.114684741 Simplifying x + 3.6 = 5.114684741 Reorder the terms: 3.6 + x = 5.114684741 Solving 3.6 + x = 5.114684741 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.6' to each side of the equation. 3.6 + -3.6 + x = 5.114684741 + -3.6 Combine like terms: 3.6 + -3.6 = 0.0 0.0 + x = 5.114684741 + -3.6 x = 5.114684741 + -3.6 Combine like terms: 5.114684741 + -3.6 = 1.514684741 x = 1.514684741 Simplifying x = 1.514684741Subproblem 2
x + 3.6 = -5.114684741 Simplifying x + 3.6 = -5.114684741 Reorder the terms: 3.6 + x = -5.114684741 Solving 3.6 + x = -5.114684741 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.6' to each side of the equation. 3.6 + -3.6 + x = -5.114684741 + -3.6 Combine like terms: 3.6 + -3.6 = 0.0 0.0 + x = -5.114684741 + -3.6 x = -5.114684741 + -3.6 Combine like terms: -5.114684741 + -3.6 = -8.714684741 x = -8.714684741 Simplifying x = -8.714684741Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.514684741, -8.714684741}
| -7x-4(-4x+4)=-124 | | 5x^2+36x+66=0 | | X^4=-147 | | 8x-12=8x+12 | | 5(2-y)=7y-26 | | 6(3+3x)+2(6x+8)=-26 | | 4x+110=6x+20 | | .5L=11 | | c^2+10c-11= | | 5(2x-3)=27-4x | | 3sinx+4=0 | | 7x-11y=10 | | 5y+17=98 | | 16x=46-7x | | 2x-5+3x+5(2+3x)=7x-5+3x | | -3x-2=x+1 | | (E^7x+1)-8=0 | | (z+2)(z+2)=-2z | | 0.8x+0.12(26-x)=.48x | | ((m-2)5)+6m=56 | | 18y-16+18=2y-13 | | 1-6y=8-7y | | 2(3y-2)=68 | | rz-4z=5p | | -3u+26=8(u+6) | | 0.8x+0.12(26-x)=.048x | | 41=4(2-2x)+1 | | -(-5+x)=-13 | | 4x=6(x+4)-2 | | -44-5.5b=-33 | | H^2+11h+18= | | 2(x-4)+2x=-6x-2x |