If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying X2 + 2X = 20 Reorder the terms: 2X + X2 = 20 Solving 2X + X2 = 20 Solving for variable 'X'. Reorder the terms: -20 + 2X + X2 = 20 + -20 Combine like terms: 20 + -20 = 0 -20 + 2X + X2 = 0 Begin completing the square. Move the constant term to the right: Add '20' to each side of the equation. -20 + 2X + 20 + X2 = 0 + 20 Reorder the terms: -20 + 20 + 2X + X2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + 2X + X2 = 0 + 20 2X + X2 = 0 + 20 Combine like terms: 0 + 20 = 20 2X + X2 = 20 The X term is 2X. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2X + 1 + X2 = 20 + 1 Reorder the terms: 1 + 2X + X2 = 20 + 1 Combine like terms: 20 + 1 = 21 1 + 2X + X2 = 21 Factor a perfect square on the left side: (X + 1)(X + 1) = 21 Calculate the square root of the right side: 4.582575695 Break this problem into two subproblems by setting (X + 1) equal to 4.582575695 and -4.582575695.Subproblem 1
X + 1 = 4.582575695 Simplifying X + 1 = 4.582575695 Reorder the terms: 1 + X = 4.582575695 Solving 1 + X = 4.582575695 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + X = 4.582575695 + -1 Combine like terms: 1 + -1 = 0 0 + X = 4.582575695 + -1 X = 4.582575695 + -1 Combine like terms: 4.582575695 + -1 = 3.582575695 X = 3.582575695 Simplifying X = 3.582575695Subproblem 2
X + 1 = -4.582575695 Simplifying X + 1 = -4.582575695 Reorder the terms: 1 + X = -4.582575695 Solving 1 + X = -4.582575695 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + X = -4.582575695 + -1 Combine like terms: 1 + -1 = 0 0 + X = -4.582575695 + -1 X = -4.582575695 + -1 Combine like terms: -4.582575695 + -1 = -5.582575695 X = -5.582575695 Simplifying X = -5.582575695Solution
The solution to the problem is based on the solutions from the subproblems. X = {3.582575695, -5.582575695}
| x^7+x^4-16x^3=16 | | z^2+4*z+1+i*4=0 | | 15x-x^2=0 | | 4x^2-9x-13=0 | | x^3-12x-88=0 | | 2x^2+75=25x | | a^2+5=11 | | 4a^2=8a | | 15=3t^2-18t | | 3x^2-9y=0 | | 2x^2+12x=3 | | 5x^2-40x+25=0 | | 3x^2+6x-30=0 | | x^2-5x=4 | | x^2-18x+7=0 | | x^2+10x-3=0 | | 4x^2-x+8=8x+3 | | 6x^2-23x-18=0 | | 4x^2+16x+15=0 | | x^2+4x+24=-7x-4 | | x^2-5x+15=9 | | x^2-6x-16=0 | | 3x^2-24x-27=0 | | 4x^2-12x+9=5 | | 10x^3-2=0 | | 10x^3+2=0 | | x^2+10x+25=8 | | x^2-8x+16=5 | | 4x^2+20x+25=49 | | 6x^2+2x-30=4x^2+9x | | 4x^2-7x-5=0 | | 4x^2-9x-5=0 |