If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 71r2 + -151r + 87 = 0 Reorder the terms: 87 + -151r + 71r2 = 0 Solving 87 + -151r + 71r2 = 0 Solving for variable 'r'. Begin completing the square. Divide all terms by 71 the coefficient of the squared term: Divide each side by '71'. 1.225352113 + -2.126760563r + r2 = 0 Move the constant term to the right: Add '-1.225352113' to each side of the equation. 1.225352113 + -2.126760563r + -1.225352113 + r2 = 0 + -1.225352113 Reorder the terms: 1.225352113 + -1.225352113 + -2.126760563r + r2 = 0 + -1.225352113 Combine like terms: 1.225352113 + -1.225352113 = 0.000000000 0.000000000 + -2.126760563r + r2 = 0 + -1.225352113 -2.126760563r + r2 = 0 + -1.225352113 Combine like terms: 0 + -1.225352113 = -1.225352113 -2.126760563r + r2 = -1.225352113 The r term is -2.126760563r. Take half its coefficient (-1.063380282). Square it (1.130777624) and add it to both sides. Add '1.130777624' to each side of the equation. -2.126760563r + 1.130777624 + r2 = -1.225352113 + 1.130777624 Reorder the terms: 1.130777624 + -2.126760563r + r2 = -1.225352113 + 1.130777624 Combine like terms: -1.225352113 + 1.130777624 = -0.094574489 1.130777624 + -2.126760563r + r2 = -0.094574489 Factor a perfect square on the left side: (r + -1.063380282)(r + -1.063380282) = -0.094574489 Can't calculate square root of the right side. The solution to this equation could not be determined.
| Q=30+6P | | 8x-2y=36 | | 10m=3x+3y+4z[z] | | 3x+24=95 | | 10=-2+6y | | 140x^4-5x^3-75x^2=0 | | 5t+10=7t | | 0.2+c=0.8 | | 10m=3x+3y+4z(z) | | (3)/1/2=x/2/3 | | 4(3x+4)=2(6x+6) | | 10m=3x+3y+4z | | -18+6y+18=0 | | og^2x=-1 | | 2m-10=16 | | f(x)=475-15x | | 0.7x+0.2=0.3x+4.6 | | 0.75p=24 | | 121n^2-36=0 | | x^4+2x^3+2x^2-8=0 | | 7x=2.5 | | 1/5/7=1/13/14 | | 8b-24= | | -1/9-1/3=x | | 15+4(5y+10)= | | 0.02(2t+6)=0.04(t+5)-0.08 | | -1/9-1/3 | | 24p/3-5=20 | | 1.22=n+0.77 | | 4s-3=93 | | 0.6x+0.5=0.8x-0.7 | | 1.2=n+.77 |