If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 8x2 + 2x + 21 = 0 Reorder the terms: 21 + 2x + 8x2 = 0 Solving 21 + 2x + 8x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. 2.625 + 0.25x + x2 = 0 Move the constant term to the right: Add '-2.625' to each side of the equation. 2.625 + 0.25x + -2.625 + x2 = 0 + -2.625 Reorder the terms: 2.625 + -2.625 + 0.25x + x2 = 0 + -2.625 Combine like terms: 2.625 + -2.625 = 0.000 0.000 + 0.25x + x2 = 0 + -2.625 0.25x + x2 = 0 + -2.625 Combine like terms: 0 + -2.625 = -2.625 0.25x + x2 = -2.625 The x term is 0.25x. Take half its coefficient (0.125). Square it (0.015625) and add it to both sides. Add '0.015625' to each side of the equation. 0.25x + 0.015625 + x2 = -2.625 + 0.015625 Reorder the terms: 0.015625 + 0.25x + x2 = -2.625 + 0.015625 Combine like terms: -2.625 + 0.015625 = -2.609375 0.015625 + 0.25x + x2 = -2.609375 Factor a perfect square on the left side: (x + 0.125)(x + 0.125) = -2.609375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 3-10b=-78 | | -4+12=x | | -10(-8x+9)-8x= | | 4x^2+12x-19=0 | | 3-7=6 | | 6x-3=5x-9 | | 22x-8-16x+2=17x-8-11x+16 | | 5x+15=3(5+x) | | x+18+3x=-24-3x-28 | | 6r-1=11+6r | | 6(3+2x)-2=28 | | 4x^2-12x-1=0 | | 5x+15=3(5+x)+2 | | 2(h-5)-h=h-10 | | 9-6x+x^2=(27-9x-3x^2)*1 | | 4f+3=15 | | 5x^2-50x=-105 | | 3y-7=y | | 7+4z=43 | | -11+x=x+28 | | 1000000xX=30000 | | 3x^2+23x-8=0 | | 14b=-5 | | ln(x)=0.20 | | 6b+8=4b-18 | | 80-9y=6y | | 8X=5X^2 | | ln(a)=0.20 | | 7w-2w=3w+22 | | 9+2s-2=9s+14-6s | | 8(3x+7)=7(4x-6) | | 1000000-X=30000 |