If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + x + 9 = 0 Reorder the terms: 9 + x + 2x2 = 0 Solving 9 + x + 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'. 4.5 + 0.5x + x2 = 0 Move the constant term to the right: Add '-4.5' to each side of the equation. 4.5 + 0.5x + -4.5 + x2 = 0 + -4.5 Reorder the terms: 4.5 + -4.5 + 0.5x + x2 = 0 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + 0.5x + x2 = 0 + -4.5 0.5x + x2 = 0 + -4.5 Combine like terms: 0 + -4.5 = -4.5 0.5x + x2 = -4.5 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.5x + 0.25 + x2 = -4.5 + 0.25 Reorder the terms: 0.25 + 0.5x + x2 = -4.5 + 0.25 Combine like terms: -4.5 + 0.25 = -4.25 0.25 + 0.5x + x2 = -4.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -4.25 Can't calculate square root of the right side. The solution to this equation could not be determined.
| x^2+4x=9 | | -5x^2+4x+2=0 | | 10z+x=180 | | 35=3-16x | | 2y=-3 | | r^2+r-156= | | 180-18z=x | | 3x^2-6x-1=0 | | -3+10y+6=15+12y-18 | | 2w^2+11w=-5 | | x^2-11x+2=0 | | 25x(x+2)=9000 | | 6u=-1 | | 25x^2+50-9000=0 | | x+(x+1)+(x+2)=108 | | -3x^2+7x-2=0 | | 7x-1=9x+7 | | x^3-3xy+2y^3=3 | | -5x^2-11x-2=0 | | y=-5x^2-11x-2 | | 3y+10=100-6x | | 2m+4x=6x-7 | | 2x-3(x+6)=-20 | | 2(0)+3y=-4 | | (3a-4a+7)-(5a-2a+1)= | | -3(x+5)+5x=11 | | 5x-9=3x+23 | | 4t-7=t+5 | | 2x-(-9)=4 | | -10x+5(-3x+5)=50 | | 8cos^2(x)=4cos(x) | | 7-8x+4(8x+9)= |