If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2r + 8 + 6r(2 + -1r) = 20 -2r + 8 + (2 * 6r + -1r * 6r) = 20 -2r + 8 + (12r + -6r2) = 20 Reorder the terms: 8 + -2r + 12r + -6r2 = 20 Combine like terms: -2r + 12r = 10r 8 + 10r + -6r2 = 20 Solving 8 + 10r + -6r2 = 20 Solving for variable 'r'. Reorder the terms: 8 + -20 + 10r + -6r2 = 20 + -20 Combine like terms: 8 + -20 = -12 -12 + 10r + -6r2 = 20 + -20 Combine like terms: 20 + -20 = 0 -12 + 10r + -6r2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-6 + 5r + -3r2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-6 + 5r + -3r2)' equal to zero and attempt to solve: Simplifying -6 + 5r + -3r2 = 0 Solving -6 + 5r + -3r2 = 0 Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. 2 + -1.666666667r + r2 = 0 Move the constant term to the right: Add '-2' to each side of the equation. 2 + -1.666666667r + -2 + r2 = 0 + -2 Reorder the terms: 2 + -2 + -1.666666667r + r2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1.666666667r + r2 = 0 + -2 -1.666666667r + r2 = 0 + -2 Combine like terms: 0 + -2 = -2 -1.666666667r + r2 = -2 The r term is -1.666666667r. Take half its coefficient (-0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. -1.666666667r + 0.6944444447 + r2 = -2 + 0.6944444447 Reorder the terms: 0.6944444447 + -1.666666667r + r2 = -2 + 0.6944444447 Combine like terms: -2 + 0.6944444447 = -1.3055555553 0.6944444447 + -1.666666667r + r2 = -1.3055555553 Factor a perfect square on the left side: (r + -0.8333333335)(r + -0.8333333335) = -1.3055555553 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
| 4x-6=6x+14 | | -2x^2-8x+1=0 | | 4-6w=3(.5+.5w) | | (8a^3-b^3)(2a^2+5ab+2b^2)= | | x^2+9x-84=0 | | -3+6x=-57 | | 2x^2+7x+50=0 | | -(4y+3)-(3y-4)=-1 | | 3x+2=6x-13 | | 2y+3=17 | | 5z+7=37 | | 9z+7=43 | | 9z+6=78 | | 9z+5=41 | | 3x+2=2(x-4)+8 | | 5+2(k+4)=5(k-3)+10 | | 6(x+16)=9x | | 8y+4=44 | | X*6-X=10 | | 7y+3=66 | | X^2-9xy+14y^2=0 | | 8-6y=1-7y | | X^2-x-2.7=0 | | p^2+12p-4=0 | | 6-6y=1-7y | | (2x^2-5xy+2y^2)(3x^2-6xy)= | | 22-n=6n-8-2n | | 2x=-8+6x | | 73+x=90 | | x=78 | | 0.4x=0.2 | | 18+x=90 |