If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + -8x = 21 Reorder the terms: -8x + x2 = 21 Solving -8x + x2 = 21 Solving for variable 'x'. Reorder the terms: -21 + -8x + x2 = 21 + -21 Combine like terms: 21 + -21 = 0 -21 + -8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '21' to each side of the equation. -21 + -8x + 21 + x2 = 0 + 21 Reorder the terms: -21 + 21 + -8x + x2 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + -8x + x2 = 0 + 21 -8x + x2 = 0 + 21 Combine like terms: 0 + 21 = 21 -8x + x2 = 21 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = 21 + 16 Reorder the terms: 16 + -8x + x2 = 21 + 16 Combine like terms: 21 + 16 = 37 16 + -8x + x2 = 37 Factor a perfect square on the left side: (x + -4)(x + -4) = 37 Calculate the square root of the right side: 6.08276253 Break this problem into two subproblems by setting (x + -4) equal to 6.08276253 and -6.08276253.Subproblem 1
x + -4 = 6.08276253 Simplifying x + -4 = 6.08276253 Reorder the terms: -4 + x = 6.08276253 Solving -4 + x = 6.08276253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 6.08276253 + 4 Combine like terms: -4 + 4 = 0 0 + x = 6.08276253 + 4 x = 6.08276253 + 4 Combine like terms: 6.08276253 + 4 = 10.08276253 x = 10.08276253 Simplifying x = 10.08276253Subproblem 2
x + -4 = -6.08276253 Simplifying x + -4 = -6.08276253 Reorder the terms: -4 + x = -6.08276253 Solving -4 + x = -6.08276253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -6.08276253 + 4 Combine like terms: -4 + 4 = 0 0 + x = -6.08276253 + 4 x = -6.08276253 + 4 Combine like terms: -6.08276253 + 4 = -2.08276253 x = -2.08276253 Simplifying x = -2.08276253Solution
The solution to the problem is based on the solutions from the subproblems. x = {10.08276253, -2.08276253}
| (3/w)+(w/w+1) | | 3/8*5/8 | | 4(x-3)=-3(2x+1) | | 4x(x+4y+2z)= | | X^2=121.5 | | x-5x+1=0 | | 9(-m-4n)= | | 5-4(x-3)=x-2(x-1) | | 5x-15=75 | | 23/8*13/4 | | 5/4+42=-123 | | 5(x-3)=6-2x | | (x^2+4x+21)/(x^2-4x-21)-(9x+35)/(x^2-4x-21) | | (13t+7)(6t-18)=0 | | (6u+7)/5=(u-3)/6+(5) | | 6u+7/5=u-3/6+5 | | 32x+24=5(2x-4) | | (w-1/w+2)+1=(w-7/w-6) | | (3x+2)/10-6=0 | | 3x-7=6x+20 | | 3(x-5)=7+x | | 8x-14/3x | | -2(x-5)=-16 | | 5x+3x+6x= | | 7x=-55 | | .15(x)+.08(y)=1.92 | | 12r^5(r^3)^3/11(r^-2)^2 | | x-4x+6=12 | | -5.8+2.6= | | 17-(4-62)+4=42 | | 3x-2(4x+3)=3x-5 | | 3s+4d= |