If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + -8r + 8 = 0 Reorder the terms: 8 + -8r + r2 = 0 Solving 8 + -8r + r2 = 0 Solving for variable 'r'. Begin completing the square. Move the constant term to the right: Add '-8' to each side of the equation. 8 + -8r + -8 + r2 = 0 + -8 Reorder the terms: 8 + -8 + -8r + r2 = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -8r + r2 = 0 + -8 -8r + r2 = 0 + -8 Combine like terms: 0 + -8 = -8 -8r + r2 = -8 The r term is -8r. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8r + 16 + r2 = -8 + 16 Reorder the terms: 16 + -8r + r2 = -8 + 16 Combine like terms: -8 + 16 = 8 16 + -8r + r2 = 8 Factor a perfect square on the left side: (r + -4)(r + -4) = 8 Calculate the square root of the right side: 2.828427125 Break this problem into two subproblems by setting (r + -4) equal to 2.828427125 and -2.828427125.Subproblem 1
r + -4 = 2.828427125 Simplifying r + -4 = 2.828427125 Reorder the terms: -4 + r = 2.828427125 Solving -4 + r = 2.828427125 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + r = 2.828427125 + 4 Combine like terms: -4 + 4 = 0 0 + r = 2.828427125 + 4 r = 2.828427125 + 4 Combine like terms: 2.828427125 + 4 = 6.828427125 r = 6.828427125 Simplifying r = 6.828427125Subproblem 2
r + -4 = -2.828427125 Simplifying r + -4 = -2.828427125 Reorder the terms: -4 + r = -2.828427125 Solving -4 + r = -2.828427125 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + r = -2.828427125 + 4 Combine like terms: -4 + 4 = 0 0 + r = -2.828427125 + 4 r = -2.828427125 + 4 Combine like terms: -2.828427125 + 4 = 1.171572875 r = 1.171572875 Simplifying r = 1.171572875Solution
The solution to the problem is based on the solutions from the subproblems. r = {6.828427125, 1.171572875}
| 8-2z=5+3x | | -3(1+5x)=-78 | | x=2.5+3.5y | | 8-2z=5+2x | | 5x+2[x-3]= | | 3(-10-6x)=-156 | | 90005=x^2-4y^2 | | 9005=x^2-4y^20 | | 2(3x+5)+8=46 | | 4(5x-8)=168 | | 490(1-0.125)(1-0.15)(1-0.05)= | | 9005=x^2-4y^2 | | x^(5/7)=5.1 | | -33x=-900 | | 37=1/4x+24 | | x^5/7=5.1 | | 3(5x-8)=156 | | 2a^2b(4a-2ab+b^2)=0 | | -3x=165 | | 4(4+2x)=0 | | (4x-6)/7=2 | | 3x-7=110-10x | | 4x-2(-2x)=4 | | 2x-3(-6)=6 | | 3.8x+(6+0.4x)=1.3(6-2.6x) | | -6(7x+10)=-480 | | logwQ=20 | | 9=3√(2)/x | | 9=3√(2)/n | | 7(6x+2)=224 | | 3T+5S=6.4 | | -9x+53=251 |