If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4r2 + -48r + 86.4 = 0 Reorder the terms: 86.4 + -48r + 4r2 = 0 Solving 86.4 + -48r + 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'. 21.6 + -12r + r2 = 0 Move the constant term to the right: Add '-21.6' to each side of the equation. 21.6 + -12r + -21.6 + r2 = 0 + -21.6 Reorder the terms: 21.6 + -21.6 + -12r + r2 = 0 + -21.6 Combine like terms: 21.6 + -21.6 = 0.0 0.0 + -12r + r2 = 0 + -21.6 -12r + r2 = 0 + -21.6 Combine like terms: 0 + -21.6 = -21.6 -12r + r2 = -21.6 The r term is -12r. Take half its coefficient (-6). Square it (36) and add it to both sides. Add '36' to each side of the equation. -12r + 36 + r2 = -21.6 + 36 Reorder the terms: 36 + -12r + r2 = -21.6 + 36 Combine like terms: -21.6 + 36 = 14.4 36 + -12r + r2 = 14.4 Factor a perfect square on the left side: (r + -6)(r + -6) = 14.4 Calculate the square root of the right side: 3.794733192 Break this problem into two subproblems by setting (r + -6) equal to 3.794733192 and -3.794733192.Subproblem 1
r + -6 = 3.794733192 Simplifying r + -6 = 3.794733192 Reorder the terms: -6 + r = 3.794733192 Solving -6 + r = 3.794733192 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + r = 3.794733192 + 6 Combine like terms: -6 + 6 = 0 0 + r = 3.794733192 + 6 r = 3.794733192 + 6 Combine like terms: 3.794733192 + 6 = 9.794733192 r = 9.794733192 Simplifying r = 9.794733192Subproblem 2
r + -6 = -3.794733192 Simplifying r + -6 = -3.794733192 Reorder the terms: -6 + r = -3.794733192 Solving -6 + r = -3.794733192 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + r = -3.794733192 + 6 Combine like terms: -6 + 6 = 0 0 + r = -3.794733192 + 6 r = -3.794733192 + 6 Combine like terms: -3.794733192 + 6 = 2.205266808 r = 2.205266808 Simplifying r = 2.205266808Solution
The solution to the problem is based on the solutions from the subproblems. r = {9.794733192, 2.205266808}
| (9+2i)(8-5i)= | | 7x+11=6X+4 | | 13-(5m+8)=3+3m-14 | | -4x-10=3x-6 | | 18/x=3/36 | | 1.8x-10=-4 | | Y=3x^2-4x-7 | | 7-3x=11x | | 5y(2y+3)+(2y-3)= | | 5r^2+7t=0 | | (5y1/2)^4 | | 2/3=54.y=81 | | X^2+26y^2=3 | | 3m-11=1 | | 13=-6(k-7)+6(k+5) | | 2x-5=8x-24 | | 25-(-16)= | | 60+2x+2x+12+x+2=360 | | -2(n-1)-2n=1-4n | | 72=9m-m | | 8y^-1/3=16 | | 8-3[4(a+2)-3a]= | | -f/5+1=-13 | | 3=.2-7 | | 31x+13y=3 | | -2a+4=-6a-3 | | (a-4)14/42 | | -2y+29=5y-6 | | 6x-1y=-4 | | (3x+1)(x+2)=100 | | -3(x+2)=27x+24 | | 2p^2-6p+5=0 |