If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + 28r = -23 Reorder the terms: 28r + r2 = -23 Solving 28r + r2 = -23 Solving for variable 'r'. Reorder the terms: 23 + 28r + r2 = -23 + 23 Combine like terms: -23 + 23 = 0 23 + 28r + r2 = 0 Begin completing the square. Move the constant term to the right: Add '-23' to each side of the equation. 23 + 28r + -23 + r2 = 0 + -23 Reorder the terms: 23 + -23 + 28r + r2 = 0 + -23 Combine like terms: 23 + -23 = 0 0 + 28r + r2 = 0 + -23 28r + r2 = 0 + -23 Combine like terms: 0 + -23 = -23 28r + r2 = -23 The r term is 28r. Take half its coefficient (14). Square it (196) and add it to both sides. Add '196' to each side of the equation. 28r + 196 + r2 = -23 + 196 Reorder the terms: 196 + 28r + r2 = -23 + 196 Combine like terms: -23 + 196 = 173 196 + 28r + r2 = 173 Factor a perfect square on the left side: (r + 14)(r + 14) = 173 Calculate the square root of the right side: 13.152946438 Break this problem into two subproblems by setting (r + 14) equal to 13.152946438 and -13.152946438.Subproblem 1
r + 14 = 13.152946438 Simplifying r + 14 = 13.152946438 Reorder the terms: 14 + r = 13.152946438 Solving 14 + r = 13.152946438 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + r = 13.152946438 + -14 Combine like terms: 14 + -14 = 0 0 + r = 13.152946438 + -14 r = 13.152946438 + -14 Combine like terms: 13.152946438 + -14 = -0.847053562 r = -0.847053562 Simplifying r = -0.847053562Subproblem 2
r + 14 = -13.152946438 Simplifying r + 14 = -13.152946438 Reorder the terms: 14 + r = -13.152946438 Solving 14 + r = -13.152946438 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + r = -13.152946438 + -14 Combine like terms: 14 + -14 = 0 0 + r = -13.152946438 + -14 r = -13.152946438 + -14 Combine like terms: -13.152946438 + -14 = -27.152946438 r = -27.152946438 Simplifying r = -27.152946438Solution
The solution to the problem is based on the solutions from the subproblems. r = {-0.847053562, -27.152946438}
| 3^(7/a) | | 7(3x+4)=56 | | 5(a-2)=45 | | -2c+9=-19 | | g^2+22g-3=0 | | 3^(a/7) | | 12.99=0.5X | | x+3y=147 | | p^2+16p=41 | | p^2+16p=4 | | 15v^2+25v-60=0 | | x+19+x-14=x+51 | | f^2+2f-43=0 | | 4(x+5)=2(x+25) | | k^2+12k-19=0 | | 2x+6y+4-y-9x-6= | | -4(-6x+2)=-128 | | s+53=g | | Y=1/0.75 | | u-31+u-31=u | | s+53= | | -102=6(-3x-2) | | -2+2=-4+12x | | x-6x+8x-5x= | | n-5n+1=15 | | j^2-26j=17 | | 7x-(5x+6)+(x-2)=3x-8 | | x^2+8x-43=0 | | s-2+s+14=s+48 | | 0.5x+2=x+8 | | 6x-1/2=3 | | -4(5x-8)=-48 |