If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 4x + 1 = 90 Reorder the terms: 1 + 4x + 2x2 = 90 Solving 1 + 4x + 2x2 = 90 Solving for variable 'x'. Reorder the terms: 1 + -90 + 4x + 2x2 = 90 + -90 Combine like terms: 1 + -90 = -89 -89 + 4x + 2x2 = 90 + -90 Combine like terms: 90 + -90 = 0 -89 + 4x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -44.5 + 2x + x2 = 0 Move the constant term to the right: Add '44.5' to each side of the equation. -44.5 + 2x + 44.5 + x2 = 0 + 44.5 Reorder the terms: -44.5 + 44.5 + 2x + x2 = 0 + 44.5 Combine like terms: -44.5 + 44.5 = 0.0 0.0 + 2x + x2 = 0 + 44.5 2x + x2 = 0 + 44.5 Combine like terms: 0 + 44.5 = 44.5 2x + x2 = 44.5 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 = 44.5 + 1 Reorder the terms: 1 + 2x + x2 = 44.5 + 1 Combine like terms: 44.5 + 1 = 45.5 1 + 2x + x2 = 45.5 Factor a perfect square on the left side: (x + 1)(x + 1) = 45.5 Calculate the square root of the right side: 6.745368782 Break this problem into two subproblems by setting (x + 1) equal to 6.745368782 and -6.745368782.Subproblem 1
x + 1 = 6.745368782 Simplifying x + 1 = 6.745368782 Reorder the terms: 1 + x = 6.745368782 Solving 1 + x = 6.745368782 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 = 6.745368782 + -1 Combine like terms: 1 + -1 = 0 0 + x = 6.745368782 + -1 x = 6.745368782 + -1 Combine like terms: 6.745368782 + -1 = 5.745368782 x = 5.745368782 Simplifying x = 5.745368782Subproblem 2
x + 1 = -6.745368782 Simplifying x + 1 = -6.745368782 Reorder the terms: 1 + x = -6.745368782 Solving 1 + x = -6.745368782 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 = -6.745368782 + -1 Combine like terms: 1 + -1 = 0 0 + x = -6.745368782 + -1 x = -6.745368782 + -1 Combine like terms: -6.745368782 + -1 = -7.745368782 x = -7.745368782 Simplifying x = -7.745368782Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.745368782, -7.745368782}
| 7x^2-15x+28=0 | | x(9x+50)=35-3x(1+3x) | | 3logx+1=7 | | 3lgx+1=7 | | n(12)+n(12)-3=396 | | 12n+12N-3=396 | | X-3=25+2(-5x)+x*x | | x-3=25-2(-5x)+x*x | | y=3(6a+4b) | | 10x=2y | | 8-x+1=-3 | | -17(x*-1(x))*x=0 | | -17*x*-1(x)*x=0 | | x^2+24=x^2+1+2x-25 | | 14(15q+6)= | | 21=5a+6 | | (X-2)-5(x+3)=x-6(x-5) | | -5(2-x)-7x=8 | | 36(6)-3(25)=7y | | .3+.50x=2x-1.8 | | .78+.4=2x | | 36-8x+11=-3 | | 5sinx=8cosx | | 18x-15=24 | | 6-4x-3x-2+9x= | | 16x-8x=56 | | 7(X+8)+10=30 | | 8(x+2)=34 | | y-0.1y= | | -5m+8m= | | 10-b=-11 | | 3-a=-5 |