If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 9r2 + 6r + 4 = 0 Reorder the terms: 4 + 6r + 9r2 = 0 Solving 4 + 6r + 9r2 = 0 Solving for variable 'r'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 0.4444444444 + 0.6666666667r + r2 = 0 Move the constant term to the right: Add '-0.4444444444' to each side of the equation. 0.4444444444 + 0.6666666667r + -0.4444444444 + r2 = 0 + -0.4444444444 Reorder the terms: 0.4444444444 + -0.4444444444 + 0.6666666667r + r2 = 0 + -0.4444444444 Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000 0.0000000000 + 0.6666666667r + r2 = 0 + -0.4444444444 0.6666666667r + r2 = 0 + -0.4444444444 Combine like terms: 0 + -0.4444444444 = -0.4444444444 0.6666666667r + r2 = -0.4444444444 The r term is 0.6666666667r. Take half its coefficient (0.3333333334). Square it (0.1111111112) and add it to both sides. Add '0.1111111112' to each side of the equation. 0.6666666667r + 0.1111111112 + r2 = -0.4444444444 + 0.1111111112 Reorder the terms: 0.1111111112 + 0.6666666667r + r2 = -0.4444444444 + 0.1111111112 Combine like terms: -0.4444444444 + 0.1111111112 = -0.3333333332 0.1111111112 + 0.6666666667r + r2 = -0.3333333332 Factor a perfect square on the left side: (r + 0.3333333334)(r + 0.3333333334) = -0.3333333332 Can't calculate square root of the right side. The solution to this equation could not be determined.
| x^2+300x-58=0 | | 6x-[6-5(3x+6)]= | | 2b=1+9 | | (x-x^2*y)*dy-y*dx=0 | | y=sqrt(x+2) | | 6y+96=180 | | -22-8n=5(-7-n) | | 5x(e+2)=25 | | 16x+16y+11+11x-2y-2= | | -8p=10-3p | | (8x^3-1)/(1-2x^3) | | -4(z-7)=24 | | 1.8x-2.2y-5.8x-5.7y= | | x(12)+x=288 | | 2r^2+9r+5=0 | | -4x^3+10x-1=0 | | 3(x-5=108/12 | | 4x-(-2)=2 | | y+4x^2=1 | | Q^0.8=1/5Q | | 12x+23=6x-1 | | 15x+35=15x+35 | | -10b-(-3b+(12b-(-13b+4)))= | | 3cos^2x=x+1 | | x=4.0-6t^2 | | -3(b-7)= | | 3x+5+3x-11=180 | | 1-(9/x^2)= | | x-6-6x=14 | | 2(t+4)=d+8 | | 4b+5=2b+13 | | y=29x+22 |