If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 81 + (2x + -3) = x2 Reorder the terms: 81 + (-3 + 2x) = x2 Remove parenthesis around (-3 + 2x) 81 + -3 + 2x = x2 Combine like terms: 81 + -3 = 78 78 + 2x = x2 Solving 78 + 2x = x2 Solving for variable 'x'. Combine like terms: x2 + -1x2 = 0 78 + 2x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -78 + -2x + x2 = 0 Move the constant term to the right: Add '78' to each side of the equation. -78 + -2x + 78 + x2 = 0 + 78 Reorder the terms: -78 + 78 + -2x + x2 = 0 + 78 Combine like terms: -78 + 78 = 0 0 + -2x + x2 = 0 + 78 -2x + x2 = 0 + 78 Combine like terms: 0 + 78 = 78 -2x + x2 = 78 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 = 78 + 1 Reorder the terms: 1 + -2x + x2 = 78 + 1 Combine like terms: 78 + 1 = 79 1 + -2x + x2 = 79 Factor a perfect square on the left side: (x + -1)(x + -1) = 79 Calculate the square root of the right side: 8.888194417 Break this problem into two subproblems by setting (x + -1) equal to 8.888194417 and -8.888194417.Subproblem 1
x + -1 = 8.888194417 Simplifying x + -1 = 8.888194417 Reorder the terms: -1 + x = 8.888194417 Solving -1 + x = 8.888194417 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 = 8.888194417 + 1 Combine like terms: -1 + 1 = 0 0 + x = 8.888194417 + 1 x = 8.888194417 + 1 Combine like terms: 8.888194417 + 1 = 9.888194417 x = 9.888194417 Simplifying x = 9.888194417Subproblem 2
x + -1 = -8.888194417 Simplifying x + -1 = -8.888194417 Reorder the terms: -1 + x = -8.888194417 Solving -1 + x = -8.888194417 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 = -8.888194417 + 1 Combine like terms: -1 + 1 = 0 0 + x = -8.888194417 + 1 x = -8.888194417 + 1 Combine like terms: -8.888194417 + 1 = -7.888194417 x = -7.888194417 Simplifying x = -7.888194417Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.888194417, -7.888194417}
| 3.99x=10.92 | | 4x^2+7=16 | | 24-(4p)=8Q | | 18.9h+10.45=1.1+18.4h | | 2/x=7 | | 4t+1/3=t+6/6+t-4/6 | | -5/3x-35=x+3 | | -(5/(3x-7))=x+3 | | -12.4r-3.85=-8.26-13.1r | | 47-[4+8y-3(y+3)]=-5(2y-5)-[5(y-1)-6y+14] | | 3/x+1=x/4 | | -(5/3x-7)=x+3 | | -18j-16=-14j+16-20j | | 6*y=8-9+6*y | | 3(n-7)=-4n-21 | | -19w+11=-20w | | 7*x-4=-2*x+1+9*x-5 | | 6/x+3=4/2x-7 | | 5z+13z+11=-9+19z | | 5(x+6)-7(7x-5)=-45(x-2)+5 | | 3(x-1)=5(x+5) | | 5c/3b | | 6x-4y=17 | | 4.2f-16.42=4.7f-11.7 | | 7(5x-2)=6(6x-1)-8 | | 20+15b+20=-20-15b | | 39+6n=7(n+5) | | 2x+3x+b=68 | | 8s^2-159s+758=0 | | 18+10d=14d-20+14 | | -3(z-4)=2-2z | | [x+5]=3x+7 |