If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4r2 + -4r + -19 = 0 Reorder the terms: -19 + -4r + 4r2 = 0 Solving -19 + -4r + 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'. -4.75 + -1r + r2 = 0 Move the constant term to the right: Add '4.75' to each side of the equation. -4.75 + -1r + 4.75 + r2 = 0 + 4.75 Reorder the terms: -4.75 + 4.75 + -1r + r2 = 0 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + -1r + r2 = 0 + 4.75 -1r + r2 = 0 + 4.75 Combine like terms: 0 + 4.75 = 4.75 -1r + r2 = 4.75 The r term is -1r. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1r + 0.25 + r2 = 4.75 + 0.25 Reorder the terms: 0.25 + -1r + r2 = 4.75 + 0.25 Combine like terms: 4.75 + 0.25 = 5 0.25 + -1r + r2 = 5 Factor a perfect square on the left side: (r + -0.5)(r + -0.5) = 5 Calculate the square root of the right side: 2.236067978 Break this problem into two subproblems by setting (r + -0.5) equal to 2.236067978 and -2.236067978.Subproblem 1
r + -0.5 = 2.236067978 Simplifying r + -0.5 = 2.236067978 Reorder the terms: -0.5 + r = 2.236067978 Solving -0.5 + r = 2.236067978 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + r = 2.236067978 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + r = 2.236067978 + 0.5 r = 2.236067978 + 0.5 Combine like terms: 2.236067978 + 0.5 = 2.736067978 r = 2.736067978 Simplifying r = 2.736067978Subproblem 2
r + -0.5 = -2.236067978 Simplifying r + -0.5 = -2.236067978 Reorder the terms: -0.5 + r = -2.236067978 Solving -0.5 + r = -2.236067978 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + r = -2.236067978 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + r = -2.236067978 + 0.5 r = -2.236067978 + 0.5 Combine like terms: -2.236067978 + 0.5 = -1.736067978 r = -1.736067978 Simplifying r = -1.736067978Solution
The solution to the problem is based on the solutions from the subproblems. r = {2.736067978, -1.736067978}
| 2x+9=-3y | | 4(6-4v)+8(v+6)=-6v+4v | | (2x*8)/2=86 | | 14=3-2d | | a/.8=20 | | 4(6-4v)+8(v+60)=-6v+4v | | 1n+4n+22=7n | | 6x-2y-4=0 | | 4y+x=-10 | | 5x-19=8x | | 6(x+5)/2=39 | | (2a+3)+(3a+7)=40 | | 6y-2x=-10 | | 9=3(2x+5)-7x | | 1.5-28x=32.1 | | 7x-3x-5=21 | | 6y+2x=-10 | | 2(y-1)=16 | | 6x-12+2x=-3+8x-5 | | 6(y-2)=2y+y | | w-3w+8=16 | | 40=5(y-20) | | X-x^2=.5 | | 0=4x^2-75x+324 | | 4x-5(x-2)=10 | | 4gh=8t | | 3y+2(2y-4)=41 | | 6-3r=r-2 | | -2(4n+3)-3n=-4(4n+4) | | n/62=-54 | | -4m+8=-5n | | 2(n-6)=20 |