If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2.5x2 + -5x + -420 = 0 Reorder the terms: -420 + -5x + 2.5x2 = 0 Solving -420 + -5x + 2.5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2.5 the coefficient of the squared term: Divide each side by '2.5'. -168 + -2x + x2 = 0 Move the constant term to the right: Add '168' to each side of the equation. -168 + -2x + 168 + x2 = 0 + 168 Reorder the terms: -168 + 168 + -2x + x2 = 0 + 168 Combine like terms: -168 + 168 = 0 0 + -2x + x2 = 0 + 168 -2x + x2 = 0 + 168 Combine like terms: 0 + 168 = 168 -2x + x2 = 168 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 = 168 + 1 Reorder the terms: 1 + -2x + x2 = 168 + 1 Combine like terms: 168 + 1 = 169 1 + -2x + x2 = 169 Factor a perfect square on the left side: (x + -1)(x + -1) = 169 Calculate the square root of the right side: 13 Break this problem into two subproblems by setting (x + -1) equal to 13 and -13.Subproblem 1
x + -1 = 13 Simplifying x + -1 = 13 Reorder the terms: -1 + x = 13 Solving -1 + x = 13 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 = 13 + 1 Combine like terms: -1 + 1 = 0 0 + x = 13 + 1 x = 13 + 1 Combine like terms: 13 + 1 = 14 x = 14 Simplifying x = 14Subproblem 2
x + -1 = -13 Simplifying x + -1 = -13 Reorder the terms: -1 + x = -13 Solving -1 + x = -13 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 = -13 + 1 Combine like terms: -1 + 1 = 0 0 + x = -13 + 1 x = -13 + 1 Combine like terms: -13 + 1 = -12 x = -12 Simplifying x = -12Solution
The solution to the problem is based on the solutions from the subproblems. x = {14, -12}
| 3x-12+4x-20=12 | | 400-Q=1200+4Q | | log(x+8)-log(x+1)=log(6) | | 3n+7=21+6n | | 10-7x+x*x=0 | | -6=-16 | | A^2-8a=9 | | b^2+3=8 | | 9v-26=64 | | (3/4):12=n:32 | | 180+0.25x=385 | | 5b^2+4b-4=0 | | 3w-2=-8 | | on(x+8)+ln(x-1)=2lnx | | (3/4 | | -X*-X-X+6=0 | | -3.0(y+2)= | | x^2+7x+1x=0 | | (1/2x^-6y^5)(1/5x^6y^-8) | | 11pm+2=2(p-2) | | 7(r+7)=5r+58 | | 6ax=-3x-3 | | 35+20n= | | (-x^2)+14x-49=0 | | -24=8+3(s+9) | | 0.05x+0.1y=1.05 | | -4-2b+8=6-6-9v+6v | | -7+7x+15-12x= | | (4/5)c-12=-32 | | 10r-14=6 | | X^2-99=2x | | 2y^2-8y+7=x |