If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 11x + 21 = 0 Reorder the terms: 21 + 11x + 2x2 = 0 Solving 21 + 11x + 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'. 10.5 + 5.5x + x2 = 0 Move the constant term to the right: Add '-10.5' to each side of the equation. 10.5 + 5.5x + -10.5 + x2 = 0 + -10.5 Reorder the terms: 10.5 + -10.5 + 5.5x + x2 = 0 + -10.5 Combine like terms: 10.5 + -10.5 = 0.0 0.0 + 5.5x + x2 = 0 + -10.5 5.5x + x2 = 0 + -10.5 Combine like terms: 0 + -10.5 = -10.5 5.5x + x2 = -10.5 The x term is 5.5x. Take half its coefficient (2.75). Square it (7.5625) and add it to both sides. Add '7.5625' to each side of the equation. 5.5x + 7.5625 + x2 = -10.5 + 7.5625 Reorder the terms: 7.5625 + 5.5x + x2 = -10.5 + 7.5625 Combine like terms: -10.5 + 7.5625 = -2.9375 7.5625 + 5.5x + x2 = -2.9375 Factor a perfect square on the left side: (x + 2.75)(x + 2.75) = -2.9375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 4(n+2)=-5+8(n+2) | | 15x+80-32x=40+12x+60 | | 3(-9)+3=2(-9)-3 | | x*64=8*100 | | (4x-4)*2=58 | | -17x+80=100+12x | | -17x+80=10012x | | m^2+4=6m | | 3c+3=2(x+3) | | 2(31-7y)+3y=7 | | X+6(x-1)-(4-x)=-10 | | 4x-3/5-x | | 4n+6=28 | | 75=21x | | 5z=17-47 | | x=21-8x+24 | | 3(2-3y)+8y=4 | | r^2-7x+12=0 | | -15+18=m-5 | | 2(3.5-1.5y)+3y=7 | | 22.8p=85 | | 31-7y+7y=31 | | 31-7y+7y=21 | | 7z+6z+9z-5= | | 6x+7=-3+4x+18 | | 3(19x+9)= | | -15+w=12 | | 9x+24=10x+12 | | z^4+4z^3+8z^2+8z+4=0 | | 15+z=-2 | | 15+y=12 | | 4x-(7)=3+10 |