If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2y2 + 11y + 21 = 0 Reorder the terms: 21 + 11y + 2y2 = 0 Solving 21 + 11y + 2y2 = 0 Solving for variable 'y'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 10.5 + 5.5y + y2 = 0 Move the constant term to the right: Add '-10.5' to each side of the equation. 10.5 + 5.5y + -10.5 + y2 = 0 + -10.5 Reorder the terms: 10.5 + -10.5 + 5.5y + y2 = 0 + -10.5 Combine like terms: 10.5 + -10.5 = 0.0 0.0 + 5.5y + y2 = 0 + -10.5 5.5y + y2 = 0 + -10.5 Combine like terms: 0 + -10.5 = -10.5 5.5y + y2 = -10.5 The y term is 5.5y. 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. 5.5y + 7.5625 + y2 = -10.5 + 7.5625 Reorder the terms: 7.5625 + 5.5y + y2 = -10.5 + 7.5625 Combine like terms: -10.5 + 7.5625 = -2.9375 7.5625 + 5.5y + y2 = -2.9375 Factor a perfect square on the left side: (y + 2.75)(y + 2.75) = -2.9375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| -12z-13z-10z+-10z=7 | | -7(4d+3)=-15 | | 9x-4x-3x=29+1 | | 2.1/38 | | 26+-5x=-14 | | 5z+8=6z+40 | | 4(8+2x)=88 | | 18k-8k-5k+k-5k=9 | | 4/x-5=3 | | 7.8r+4.9=226.95 | | -2x+-13=27 | | -3x/4x=1x/8x-14 | | -1/3x-2=-1 | | 5a+20=18+30 | | x+7y=48 | | -4(b-7)-3b=84 | | 45+5y=x | | cos^3x+5cosx+6=0 | | 7x+20=-22 | | 9x+7x-3x= | | 4x=5y+31 | | 13x=6y-18 | | 42=5x+-8 | | -4=3h | | 4=3h | | -x/5-9=1 | | j+9=-4 | | -8.8(x-1.5)=17.6 | | 2x-10/x-5 | | j+9=4 | | b-4=0.8b | | -15z-12z=9 |