If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 8r2 + 3r + -30 = 0 Reorder the terms: -30 + 3r + 8r2 = 0 Solving -30 + 3r + 8r2 = 0 Solving for variable 'r'. Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -3.75 + 0.375r + r2 = 0 Move the constant term to the right: Add '3.75' to each side of the equation. -3.75 + 0.375r + 3.75 + r2 = 0 + 3.75 Reorder the terms: -3.75 + 3.75 + 0.375r + r2 = 0 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 0.00 + 0.375r + r2 = 0 + 3.75 0.375r + r2 = 0 + 3.75 Combine like terms: 0 + 3.75 = 3.75 0.375r + r2 = 3.75 The r term is 0.375r. Take half its coefficient (0.1875). Square it (0.03515625) and add it to both sides. Add '0.03515625' to each side of the equation. 0.375r + 0.03515625 + r2 = 3.75 + 0.03515625 Reorder the terms: 0.03515625 + 0.375r + r2 = 3.75 + 0.03515625 Combine like terms: 3.75 + 0.03515625 = 3.78515625 0.03515625 + 0.375r + r2 = 3.78515625 Factor a perfect square on the left side: (r + 0.1875)(r + 0.1875) = 3.78515625 Calculate the square root of the right side: 1.945547802 Break this problem into two subproblems by setting (r + 0.1875) equal to 1.945547802 and -1.945547802.Subproblem 1
r + 0.1875 = 1.945547802 Simplifying r + 0.1875 = 1.945547802 Reorder the terms: 0.1875 + r = 1.945547802 Solving 0.1875 + r = 1.945547802 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-0.1875' to each side of the equation. 0.1875 + -0.1875 + r = 1.945547802 + -0.1875 Combine like terms: 0.1875 + -0.1875 = 0.0000 0.0000 + r = 1.945547802 + -0.1875 r = 1.945547802 + -0.1875 Combine like terms: 1.945547802 + -0.1875 = 1.758047802 r = 1.758047802 Simplifying r = 1.758047802Subproblem 2
r + 0.1875 = -1.945547802 Simplifying r + 0.1875 = -1.945547802 Reorder the terms: 0.1875 + r = -1.945547802 Solving 0.1875 + r = -1.945547802 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-0.1875' to each side of the equation. 0.1875 + -0.1875 + r = -1.945547802 + -0.1875 Combine like terms: 0.1875 + -0.1875 = 0.0000 0.0000 + r = -1.945547802 + -0.1875 r = -1.945547802 + -0.1875 Combine like terms: -1.945547802 + -0.1875 = -2.133047802 r = -2.133047802 Simplifying r = -2.133047802Solution
The solution to the problem is based on the solutions from the subproblems. r = {1.758047802, -2.133047802}
| -4(t-2)+7t=9t-5 | | 7(x+4)=-63 | | 0,53=2*x | | x-(9.9)=2.1 | | -2(x+1)=x-5-2x | | 30x=9x^2+36 | | 41/3-22/3 | | 2(y-5)/3=-3y | | 34/5+84/5 | | -x^2-5x+180=0 | | 7x-28=75 | | 6(4m+3a)+m= | | 8x-4=40 | | 6(y-5)/5=-4y | | 8x+2.6=-5x-3-9 | | 0=-1/4x^2+3x | | 0.08x+0.09(3x)=455 | | 4(x+6)/5=3x-4 | | 0.60x+0.90(20)=0.30(94) | | f(x)=x^2-2x-35 | | 4/13=-26/13+66/26 | | 3-x=2(5x-1) | | (4x-7)(6x+2)=0 | | 8x^3=32x | | 2x-x=7-2 | | -5g-1(8-g)=12 | | 4n(2n-5)=0 | | 2/11=x/77 | | 9m=-12+5m | | 36-4c-4c=22 | | 5*5+(3*5)= | | 9-3x=4(2x-1) |