If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + -10r + -225 = 0 Reorder the terms: -225 + -10r + r2 = 0 Solving -225 + -10r + r2 = 0 Solving for variable 'r'. Begin completing the square. Move the constant term to the right: Add '225' to each side of the equation. -225 + -10r + 225 + r2 = 0 + 225 Reorder the terms: -225 + 225 + -10r + r2 = 0 + 225 Combine like terms: -225 + 225 = 0 0 + -10r + r2 = 0 + 225 -10r + r2 = 0 + 225 Combine like terms: 0 + 225 = 225 -10r + r2 = 225 The r term is -10r. Take half its coefficient (-5). Square it (25) and add it to both sides. Add '25' to each side of the equation. -10r + 25 + r2 = 225 + 25 Reorder the terms: 25 + -10r + r2 = 225 + 25 Combine like terms: 225 + 25 = 250 25 + -10r + r2 = 250 Factor a perfect square on the left side: (r + -5)(r + -5) = 250 Calculate the square root of the right side: 15.811388301 Break this problem into two subproblems by setting (r + -5) equal to 15.811388301 and -15.811388301.Subproblem 1
r + -5 = 15.811388301 Simplifying r + -5 = 15.811388301 Reorder the terms: -5 + r = 15.811388301 Solving -5 + r = 15.811388301 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + r = 15.811388301 + 5 Combine like terms: -5 + 5 = 0 0 + r = 15.811388301 + 5 r = 15.811388301 + 5 Combine like terms: 15.811388301 + 5 = 20.811388301 r = 20.811388301 Simplifying r = 20.811388301Subproblem 2
r + -5 = -15.811388301 Simplifying r + -5 = -15.811388301 Reorder the terms: -5 + r = -15.811388301 Solving -5 + r = -15.811388301 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + r = -15.811388301 + 5 Combine like terms: -5 + 5 = 0 0 + r = -15.811388301 + 5 r = -15.811388301 + 5 Combine like terms: -15.811388301 + 5 = -10.811388301 r = -10.811388301 Simplifying r = -10.811388301Solution
The solution to the problem is based on the solutions from the subproblems. r = {20.811388301, -10.811388301}
| 78+113= | | 4/5y=9 | | 12(5m+8)= | | 191-57= | | 2.5t+9=25 | | 3n+2n(n+2)=9n+12 | | 95.5-57= | | 2x=191 | | (4g)/(3g)-(6)/(6v)=(4g)-(v)-(1)/(3g) | | 3x=48-9 | | 1/(1.00916667)^n=.7309380097 | | 3*13-9= | | 2/7y=8 | | 5(4z-3)= | | (25x^-3y^4)/(35x^5y^2) | | 20x^3+16x^2+28x= | | (H+6)(h-2)(h)=672 | | (3x+2)*(2x+10)=90 | | 3x(2)-12x+12=0 | | b=a+.4a | | 11/10x=y-5 | | F(x)=-.02x^2+1.7x+5.3 | | x+(x-34)=436 | | (3x+2)+(2x+10)=90 | | 2x(5x-11)+12x=10 | | 100+Y+6=136 | | 10+Y=22-Y | | 2xy/3*3x/y | | -(8x-3)= | | 100+Y-8=132 | | 21-7-Y=14-7 | | 3+Y+2=13-3 |