If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4r2 + -7r + -28 + 49 = 0 Reorder the terms: -28 + 49 + -7r + 4r2 = 0 Combine like terms: -28 + 49 = 21 21 + -7r + 4r2 = 0 Solving 21 + -7r + 4r2 = 0 Solving for variable 'r'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 5.25 + -1.75r + r2 = 0 Move the constant term to the right: Add '-5.25' to each side of the equation. 5.25 + -1.75r + -5.25 + r2 = 0 + -5.25 Reorder the terms: 5.25 + -5.25 + -1.75r + r2 = 0 + -5.25 Combine like terms: 5.25 + -5.25 = 0.00 0.00 + -1.75r + r2 = 0 + -5.25 -1.75r + r2 = 0 + -5.25 Combine like terms: 0 + -5.25 = -5.25 -1.75r + r2 = -5.25 The r term is -1.75r. Take half its coefficient (-0.875). Square it (0.765625) and add it to both sides. Add '0.765625' to each side of the equation. -1.75r + 0.765625 + r2 = -5.25 + 0.765625 Reorder the terms: 0.765625 + -1.75r + r2 = -5.25 + 0.765625 Combine like terms: -5.25 + 0.765625 = -4.484375 0.765625 + -1.75r + r2 = -4.484375 Factor a perfect square on the left side: (r + -0.875)(r + -0.875) = -4.484375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| (x+5)(2x-9)=0 | | 6(x+4)+12=3(4x-1)+27 | | X^2+26x-155=0 | | 3-5(x-3)=4-4(x-5) | | 10v^2+5v+6v+3= | | 9x+13=180 | | -5x=-2(3x-4) | | 9x+30=3x+174 | | -5(1+8x)=-39-6x | | (5x+9)=4x | | 124-3x=15x+18 | | 5(x-2)-2x=2(3x+2) | | -5(1+8x)=39-6x | | 81=(3x-9) | | -7-7k=-7(1+8k) | | ln(5x-8)+ln(2)=2ln(x) | | 13x+34=90 | | 3(2x+8)=2(x-12) | | 3x-6=x-18 | | -8(a+8)=-16+4a | | 8y+12=16+2y-34 | | .11111111111x^2-13x+324=0 | | 25x^2+x^4+16=0 | | 7x+34=90 | | 3x-15-2(x+4)=6-x | | 7+6x=7+6x | | -26b-5+9= | | w-4+2w=3w-4 | | 3n+6+7n=42-2n | | 7y+2y-8= | | 7-6x=-4x-6 | | 2x-5+x+3= |