If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + -13x + 81 = 0 Reorder the terms: 81 + -13x + 2x2 = 0 Solving 81 + -13x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 40.5 + -6.5x + x2 = 0 Move the constant term to the right: Add '-40.5' to each side of the equation. 40.5 + -6.5x + -40.5 + x2 = 0 + -40.5 Reorder the terms: 40.5 + -40.5 + -6.5x + x2 = 0 + -40.5 Combine like terms: 40.5 + -40.5 = 0.0 0.0 + -6.5x + x2 = 0 + -40.5 -6.5x + x2 = 0 + -40.5 Combine like terms: 0 + -40.5 = -40.5 -6.5x + x2 = -40.5 The x term is -6.5x. Take half its coefficient (-3.25). Square it (10.5625) and add it to both sides. Add '10.5625' to each side of the equation. -6.5x + 10.5625 + x2 = -40.5 + 10.5625 Reorder the terms: 10.5625 + -6.5x + x2 = -40.5 + 10.5625 Combine like terms: -40.5 + 10.5625 = -29.9375 10.5625 + -6.5x + x2 = -29.9375 Factor a perfect square on the left side: (x + -3.25)(x + -3.25) = -29.9375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| X*30/100=92,35 | | 14+12=26 | | 6y-1=27-1 | | x-26=10-5.5x | | 3^3x-1=(27/3^1/2)^5 | | 2h/4=4 | | 3(x+3)+10=46 | | 12x+4=15x^2+5x | | 3x+32=41 | | 7x-2x=-9-12 | | 5(2X+1)+2(5X+3)=19 | | 26=2(4x+1) | | 2x^2-17x+70=136 | | x+8=2(x-1) | | 2x-15=x-13 | | (y-8)2=-12x(x-0) | | 2x^2-17x-66=0 | | 2q^2-6q-36=0 | | 3x-10=-8 | | 7x+5=-9x-31-2x | | 6z^2-6z-36=0 | | 3x^2+4y^2+12x-8y-32=0 | | 4y+2x=30 | | .36x1/4 | | 13-10x=8x+22 | | 0.45(18)+0.5x=0.15(18+x) | | 3(4x-2.5)=9x-7.5 | | 3cos(a)+10-5sin(a)=0 | | -0.5x+1.85=-0.7x+0.65 | | -0.5x+1.85=-0.7+0.65 | | x=79+-1y | | x=79-y |