If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2r2 + -1r + 5 = 0 Reorder the terms: 5 + -1r + 2r2 = 0 Solving 5 + -1r + 2r2 = 0 Solving for variable 'r'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 2.5 + -0.5r + r2 = 0 Move the constant term to the right: Add '-2.5' to each side of the equation. 2.5 + -0.5r + -2.5 + r2 = 0 + -2.5 Reorder the terms: 2.5 + -2.5 + -0.5r + r2 = 0 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + -0.5r + r2 = 0 + -2.5 -0.5r + r2 = 0 + -2.5 Combine like terms: 0 + -2.5 = -2.5 -0.5r + r2 = -2.5 The r term is -0.5r. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5r + 0.0625 + r2 = -2.5 + 0.0625 Reorder the terms: 0.0625 + -0.5r + r2 = -2.5 + 0.0625 Combine like terms: -2.5 + 0.0625 = -2.4375 0.0625 + -0.5r + r2 = -2.4375 Factor a perfect square on the left side: (r + -0.25)(r + -0.25) = -2.4375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| K=2y-3t | | -8y-7=-8+8y | | 6.4x-3.7x=43.2 | | 11x-1=10x+3 | | 20=34x-4(5x+2) | | 5(8x+2)=4(16x-5) | | -2x+6x+4=-16 | | 7h-5h+6h-6=18 | | 7x+7=5x-10 | | 4s-3=-3+s | | x-y=150 | | y=3+5(y-2) | | x-9=150 | | 2(2k-17)=4(k-2) | | .75t+.125=.75t+6 | | 123-3X=65-1X | | 39-8(-3)=-8(3+4(-3))+3(-3) | | X+5x-3=40 | | 22=2(6-x)-3 | | 7=7-x | | 3(k+2)=2k | | -7-3x=-(-9) | | 4x-12=12x+3 | | A+20a-12a+-6a=18 | | -21p=231 | | 4x-19=21 | | q-(-8)=12 | | 8+2x=-2x-16 | | y=-2x^2+x+1 | | y=-2x^2+x+1 | | p-p+2p-p+p=14 | | 3x+2z=15 |