If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 4x = 42 Reorder the terms: 4x + x2 = 42 Solving 4x + x2 = 42 Solving for variable 'x'. Reorder the terms: -42 + 4x + x2 = 42 + -42 Combine like terms: 42 + -42 = 0 -42 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '42' to each side of the equation. -42 + 4x + 42 + x2 = 0 + 42 Reorder the terms: -42 + 42 + 4x + x2 = 0 + 42 Combine like terms: -42 + 42 = 0 0 + 4x + x2 = 0 + 42 4x + x2 = 0 + 42 Combine like terms: 0 + 42 = 42 4x + x2 = 42 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 42 + 4 Reorder the terms: 4 + 4x + x2 = 42 + 4 Combine like terms: 42 + 4 = 46 4 + 4x + x2 = 46 Factor a perfect square on the left side: (x + 2)(x + 2) = 46 Calculate the square root of the right side: 6.782329983 Break this problem into two subproblems by setting (x + 2) equal to 6.782329983 and -6.782329983.Subproblem 1
x + 2 = 6.782329983 Simplifying x + 2 = 6.782329983 Reorder the terms: 2 + x = 6.782329983 Solving 2 + x = 6.782329983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 6.782329983 + -2 Combine like terms: 2 + -2 = 0 0 + x = 6.782329983 + -2 x = 6.782329983 + -2 Combine like terms: 6.782329983 + -2 = 4.782329983 x = 4.782329983 Simplifying x = 4.782329983Subproblem 2
x + 2 = -6.782329983 Simplifying x + 2 = -6.782329983 Reorder the terms: 2 + x = -6.782329983 Solving 2 + x = -6.782329983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -6.782329983 + -2 Combine like terms: 2 + -2 = 0 0 + x = -6.782329983 + -2 x = -6.782329983 + -2 Combine like terms: -6.782329983 + -2 = -8.782329983 x = -8.782329983 Simplifying x = -8.782329983Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.782329983, -8.782329983}
| -3/5-5/9= | | 3x+5-6x+7=5x-4+-1 | | 4a^2+3a-2=0 | | 43+(-70)+(-56)+27= | | 0=w^2+14w+33 | | 7-4x=2x-5 | | 5,1/4+-2,2/3= | | 0.25-0.25+0.25=0.5-0.25r | | -5x-2y=6 | | 5x+2y=378 | | 4y+3=-2y-6 | | (5x+21)+(10x+13)= | | 5+6(2-3x)-4(7-8x)-14+x= | | 3(x+2)-4x/5-2x+4/3=0 | | 18+12x=84 | | 3x^2-15=60 | | 9+7i/-10+2i | | 1/(5x+15)-3/(x+3)=5 | | 5/9+1/9= | | -22+2x=10-7x | | xsquared-15x+14=0 | | Y=-5/3+25 | | h=-16t^2+689 | | 1-2=m | | 9v+6-2(-3v-1)=(v-2) | | -7(1-4x)=3(3x-9) | | 1-21-31-31-41-51-61-71-71-81-91-019-1-817-1-61-15-1-41-13-1-2=m | | 10x+3=34 | | (y-2)=3(x+1) | | (y-2)=(3x+1) | | W=f(b+a) | | 5/9b+1/6b |