If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 16x = 21 Reorder the terms: 16x + x2 = 21 Solving 16x + x2 = 21 Solving for variable 'x'. Reorder the terms: -21 + 16x + x2 = 21 + -21 Combine like terms: 21 + -21 = 0 -21 + 16x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '21' to each side of the equation. -21 + 16x + 21 + x2 = 0 + 21 Reorder the terms: -21 + 21 + 16x + x2 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 16x + x2 = 0 + 21 16x + x2 = 0 + 21 Combine like terms: 0 + 21 = 21 16x + x2 = 21 The x term is 16x. Take half its coefficient (8). Square it (64) and add it to both sides. Add '64' to each side of the equation. 16x + 64 + x2 = 21 + 64 Reorder the terms: 64 + 16x + x2 = 21 + 64 Combine like terms: 21 + 64 = 85 64 + 16x + x2 = 85 Factor a perfect square on the left side: (x + 8)(x + 8) = 85 Calculate the square root of the right side: 9.219544457 Break this problem into two subproblems by setting (x + 8) equal to 9.219544457 and -9.219544457.Subproblem 1
x + 8 = 9.219544457 Simplifying x + 8 = 9.219544457 Reorder the terms: 8 + x = 9.219544457 Solving 8 + x = 9.219544457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 9.219544457 + -8 Combine like terms: 8 + -8 = 0 0 + x = 9.219544457 + -8 x = 9.219544457 + -8 Combine like terms: 9.219544457 + -8 = 1.219544457 x = 1.219544457 Simplifying x = 1.219544457Subproblem 2
x + 8 = -9.219544457 Simplifying x + 8 = -9.219544457 Reorder the terms: 8 + x = -9.219544457 Solving 8 + x = -9.219544457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -9.219544457 + -8 Combine like terms: 8 + -8 = 0 0 + x = -9.219544457 + -8 x = -9.219544457 + -8 Combine like terms: -9.219544457 + -8 = -17.219544457 x = -17.219544457 Simplifying x = -17.219544457Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.219544457, -17.219544457}
| 12x-15=14x+5x+10 | | 5-x=x+4 | | 22x-12x+5=35 | | 22x-12x+5x=35 | | 2x-2y=3x-3y | | x+3=-10 | | 6x+2=3y+2 | | 2(2x-3)=7(4x) | | 10x-10=25x+12+3x | | xy=-14 | | (x+1)2=-1 | | Ln(9x)=ln(14)+ln(x-7) | | 5x-10=-25 | | 41=8m+13m | | 7x+3=8x-7 | | 8x+6=20x+30+5x | | 20x+1=121 | | x+8=0.5 | | 2x+16=3(x-9) | | -10p+9p=-1 | | h^2-12h+35=0 | | 16x-64=9x+1 | | e^4x-3=6 | | 2(3x-1)=4(x-6) | | 3x+5=8x+16+2x | | 9m-2=-42+4m | | 6n-8=32+n | | 1.1(x+3)=66 | | m^2-43m+42=0 | | 3x-15=x-1 | | x^2-20+36=0 | | 0.02(5x+10)=6 |