If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 3 + -1x * 2 = 129 Reorder the terms for easier multiplication: x2 + 3 + -1 * 2x = 129 Multiply -1 * 2 x2 + 3 + -2x = 129 Reorder the terms: 3 + -2x + x2 = 129 Solving 3 + -2x + x2 = 129 Solving for variable 'x'. Reorder the terms: 3 + -129 + -2x + x2 = 129 + -129 Combine like terms: 3 + -129 = -126 -126 + -2x + x2 = 129 + -129 Combine like terms: 129 + -129 = 0 -126 + -2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '126' to each side of the equation. -126 + -2x + 126 + x2 = 0 + 126 Reorder the terms: -126 + 126 + -2x + x2 = 0 + 126 Combine like terms: -126 + 126 = 0 0 + -2x + x2 = 0 + 126 -2x + x2 = 0 + 126 Combine like terms: 0 + 126 = 126 -2x + x2 = 126 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 = 126 + 1 Reorder the terms: 1 + -2x + x2 = 126 + 1 Combine like terms: 126 + 1 = 127 1 + -2x + x2 = 127 Factor a perfect square on the left side: (x + -1)(x + -1) = 127 Calculate the square root of the right side: 11.26942767 Break this problem into two subproblems by setting (x + -1) equal to 11.26942767 and -11.26942767.Subproblem 1
x + -1 = 11.26942767 Simplifying x + -1 = 11.26942767 Reorder the terms: -1 + x = 11.26942767 Solving -1 + x = 11.26942767 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 = 11.26942767 + 1 Combine like terms: -1 + 1 = 0 0 + x = 11.26942767 + 1 x = 11.26942767 + 1 Combine like terms: 11.26942767 + 1 = 12.26942767 x = 12.26942767 Simplifying x = 12.26942767Subproblem 2
x + -1 = -11.26942767 Simplifying x + -1 = -11.26942767 Reorder the terms: -1 + x = -11.26942767 Solving -1 + x = -11.26942767 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 = -11.26942767 + 1 Combine like terms: -1 + 1 = 0 0 + x = -11.26942767 + 1 x = -11.26942767 + 1 Combine like terms: -11.26942767 + 1 = -10.26942767 x = -10.26942767 Simplifying x = -10.26942767Solution
The solution to the problem is based on the solutions from the subproblems. x = {12.26942767, -10.26942767}
| 0.4+0.6x-0.6x^2=0 | | -15x-15=-12x | | 25+6x=-47 | | 36x^2-129x+(a^2-b^2)=0 | | 3(2x-6)+2(x-3)=6(x-12)+x | | 20+20+20=6 | | -6[1+(-5)]=54 | | 12+4=-2(7x-8) | | 5x-3-3x=-9 | | x-(4-x)= | | x*.05=30 | | Y=2.1x+5.9 | | x-1+2x=3x(x-1) | | 3(5m-3)=5(m-1) | | 3x+-5=3(x+-9) | | (10)(2)+(B)(40)=(10+B)(4) | | 2x^3+x-1=0 | | 3(x-9)=7 | | 4x+9=6x+15 | | 48+34t-7t^2=0 | | 24-4x=15-x | | 3x-5=3(x-4) | | 5x+x=24 | | B+5+8=16 | | (10)(2)+(B)(40)= | | 8x+3x+x-17=22+6x+5x | | 8(y+8)=7y-1 | | 24+17t-35t^2=0 | | d=17m | | 9.4x=62.04 | | -2x+19=8 | | d=17cn |