If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 5r2 + -1r + -2 = 0 Reorder the terms: -2 + -1r + 5r2 = 0 Solving -2 + -1r + 5r2 = 0 Solving for variable 'r'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -0.4 + -0.2r + r2 = 0 Move the constant term to the right: Add '0.4' to each side of the equation. -0.4 + -0.2r + 0.4 + r2 = 0 + 0.4 Reorder the terms: -0.4 + 0.4 + -0.2r + r2 = 0 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + -0.2r + r2 = 0 + 0.4 -0.2r + r2 = 0 + 0.4 Combine like terms: 0 + 0.4 = 0.4 -0.2r + r2 = 0.4 The r term is -0.2r. Take half its coefficient (-0.1). Square it (0.01) and add it to both sides. Add '0.01' to each side of the equation. -0.2r + 0.01 + r2 = 0.4 + 0.01 Reorder the terms: 0.01 + -0.2r + r2 = 0.4 + 0.01 Combine like terms: 0.4 + 0.01 = 0.41 0.01 + -0.2r + r2 = 0.41 Factor a perfect square on the left side: (r + -0.1)(r + -0.1) = 0.41 Calculate the square root of the right side: 0.640312424 Break this problem into two subproblems by setting (r + -0.1) equal to 0.640312424 and -0.640312424.Subproblem 1
r + -0.1 = 0.640312424 Simplifying r + -0.1 = 0.640312424 Reorder the terms: -0.1 + r = 0.640312424 Solving -0.1 + r = 0.640312424 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '0.1' to each side of the equation. -0.1 + 0.1 + r = 0.640312424 + 0.1 Combine like terms: -0.1 + 0.1 = 0.0 0.0 + r = 0.640312424 + 0.1 r = 0.640312424 + 0.1 Combine like terms: 0.640312424 + 0.1 = 0.740312424 r = 0.740312424 Simplifying r = 0.740312424Subproblem 2
r + -0.1 = -0.640312424 Simplifying r + -0.1 = -0.640312424 Reorder the terms: -0.1 + r = -0.640312424 Solving -0.1 + r = -0.640312424 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '0.1' to each side of the equation. -0.1 + 0.1 + r = -0.640312424 + 0.1 Combine like terms: -0.1 + 0.1 = 0.0 0.0 + r = -0.640312424 + 0.1 r = -0.640312424 + 0.1 Combine like terms: -0.640312424 + 0.1 = -0.540312424 r = -0.540312424 Simplifying r = -0.540312424Solution
The solution to the problem is based on the solutions from the subproblems. r = {0.740312424, -0.540312424}
| 0.015x^2-.60x=0 | | 5(x+3)-2=3x | | 5x+7=9+4x | | 2(v-2)-7v=-34 | | 0.015x^2-60x=0 | | 3x+12=2x+62 | | 3n^2-n-23=0 | | 2(y+5)-4y=-2 | | x^3+6x^2+32=0 | | 6.8x+2.7=0.8x^2-0.1x | | -31-4x=-5-5-25x | | 2(1-5n)=-3n+30 | | 0=21-7 | | y=tan(x-45) | | 3x-4=-24-x | | y-5=2(x-7) | | 9p^2-1=24 | | -3m=45 | | =tan(x-45) | | 6.8x+2.7=52.1 | | 5n^2+8=288 | | 2r^2-19v+42=0 | | -3x-7y=-16 | | -9=-3+2x | | 3x-3=60-4c | | 2x-12=-24 | | 3.5x+5y=4 | | x=800-2y | | -31=5x+4 | | 8x+6x=40-10x | | 10-3y=5y-70 | | (5x+4)(x-4)=0 |