If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 21x + -12 = 0 Reorder the terms: -12 + 21x + x2 = 0 Solving -12 + 21x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '12' to each side of the equation. -12 + 21x + 12 + x2 = 0 + 12 Reorder the terms: -12 + 12 + 21x + x2 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 21x + x2 = 0 + 12 21x + x2 = 0 + 12 Combine like terms: 0 + 12 = 12 21x + x2 = 12 The x term is 21x. Take half its coefficient (10.5). Square it (110.25) and add it to both sides. Add '110.25' to each side of the equation. 21x + 110.25 + x2 = 12 + 110.25 Reorder the terms: 110.25 + 21x + x2 = 12 + 110.25 Combine like terms: 12 + 110.25 = 122.25 110.25 + 21x + x2 = 122.25 Factor a perfect square on the left side: (x + 10.5)(x + 10.5) = 122.25 Calculate the square root of the right side: 11.056672194 Break this problem into two subproblems by setting (x + 10.5) equal to 11.056672194 and -11.056672194.Subproblem 1
x + 10.5 = 11.056672194 Simplifying x + 10.5 = 11.056672194 Reorder the terms: 10.5 + x = 11.056672194 Solving 10.5 + x = 11.056672194 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10.5' to each side of the equation. 10.5 + -10.5 + x = 11.056672194 + -10.5 Combine like terms: 10.5 + -10.5 = 0.0 0.0 + x = 11.056672194 + -10.5 x = 11.056672194 + -10.5 Combine like terms: 11.056672194 + -10.5 = 0.556672194 x = 0.556672194 Simplifying x = 0.556672194Subproblem 2
x + 10.5 = -11.056672194 Simplifying x + 10.5 = -11.056672194 Reorder the terms: 10.5 + x = -11.056672194 Solving 10.5 + x = -11.056672194 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10.5' to each side of the equation. 10.5 + -10.5 + x = -11.056672194 + -10.5 Combine like terms: 10.5 + -10.5 = 0.0 0.0 + x = -11.056672194 + -10.5 x = -11.056672194 + -10.5 Combine like terms: -11.056672194 + -10.5 = -21.556672194 x = -21.556672194 Simplifying x = -21.556672194Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.556672194, -21.556672194}
| ln(x-3)+ln(12x+24)=ln(-2x) | | 4t-44=18t+8 | | 5x+35+9x=15(x+4)-25 | | 2*(2*x-5)*(3*x+4)-(2-3*x)*(2-3*x)=(x+3)*(x+3)+67 | | (2x-6)*(2x+6)+2x=-(30-4x^2) | | 14x+10=14x-10 | | 4+77x=44x+13 | | 7x-3=360 | | 5x-9=3x+6 | | 3x-5=9-4 | | -(8+12m)=-3(1+4m) | | -556+98x=-2345+67x | | 8+7(v+3)=7v+29 | | 8x+6x=180 | | 5x-6x+-10=32 | | 8x+1=180 | | 3p-6=18 | | 7(a-4)-5=7a-32 | | -2.5=60 | | 3x+11=-19-3x | | 3+11x=13+x | | 4(1-p)+1=-4p | | b+30= | | 5x^2=-8-14x | | 5(9+2x)=4*9 | | x^5+x^4=8 | | x^5+x^4-8= | | x^5+x^4-8=0 | | 7x-10=180 | | -21=16x | | 5(9+2x)=4+9 | | 10x-3y=81 |