If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 87x2 + 121x + -42 = 0 Reorder the terms: -42 + 121x + 87x2 = 0 Solving -42 + 121x + 87x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 87 the coefficient of the squared term: Divide each side by '87'. -0.4827586207 + 1.390804598x + x2 = 0 Move the constant term to the right: Add '0.4827586207' to each side of the equation. -0.4827586207 + 1.390804598x + 0.4827586207 + x2 = 0 + 0.4827586207 Reorder the terms: -0.4827586207 + 0.4827586207 + 1.390804598x + x2 = 0 + 0.4827586207 Combine like terms: -0.4827586207 + 0.4827586207 = 0.0000000000 0.0000000000 + 1.390804598x + x2 = 0 + 0.4827586207 1.390804598x + x2 = 0 + 0.4827586207 Combine like terms: 0 + 0.4827586207 = 0.4827586207 1.390804598x + x2 = 0.4827586207 The x term is 1.390804598x. Take half its coefficient (0.695402299). Square it (0.4835843575) and add it to both sides. Add '0.4835843575' to each side of the equation. 1.390804598x + 0.4835843575 + x2 = 0.4827586207 + 0.4835843575 Reorder the terms: 0.4835843575 + 1.390804598x + x2 = 0.4827586207 + 0.4835843575 Combine like terms: 0.4827586207 + 0.4835843575 = 0.9663429782 0.4835843575 + 1.390804598x + x2 = 0.9663429782 Factor a perfect square on the left side: (x + 0.695402299)(x + 0.695402299) = 0.9663429782 Calculate the square root of the right side: 0.983027455 Break this problem into two subproblems by setting (x + 0.695402299) equal to 0.983027455 and -0.983027455.Subproblem 1
x + 0.695402299 = 0.983027455 Simplifying x + 0.695402299 = 0.983027455 Reorder the terms: 0.695402299 + x = 0.983027455 Solving 0.695402299 + x = 0.983027455 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.695402299' to each side of the equation. 0.695402299 + -0.695402299 + x = 0.983027455 + -0.695402299 Combine like terms: 0.695402299 + -0.695402299 = 0.000000000 0.000000000 + x = 0.983027455 + -0.695402299 x = 0.983027455 + -0.695402299 Combine like terms: 0.983027455 + -0.695402299 = 0.287625156 x = 0.287625156 Simplifying x = 0.287625156Subproblem 2
x + 0.695402299 = -0.983027455 Simplifying x + 0.695402299 = -0.983027455 Reorder the terms: 0.695402299 + x = -0.983027455 Solving 0.695402299 + x = -0.983027455 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.695402299' to each side of the equation. 0.695402299 + -0.695402299 + x = -0.983027455 + -0.695402299 Combine like terms: 0.695402299 + -0.695402299 = 0.000000000 0.000000000 + x = -0.983027455 + -0.695402299 x = -0.983027455 + -0.695402299 Combine like terms: -0.983027455 + -0.695402299 = -1.678429754 x = -1.678429754 Simplifying x = -1.678429754Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.287625156, -1.678429754}
| 3(6x-1)=8x+4 | | 6j+7=-4j+27 | | 8x+5y=184 | | x-8=-2x-14 | | x+(8-x)=2200 | | (x^2)+10x+16=0 | | 4b-7=b+11 | | sec^2(X)=4tan(x) | | 10h-14=66 | | 0=-5x^2+5x+10 | | 2.7=5.9-0.8x | | -3-4n-1=-6+n | | 38-3x=10-10x | | xy-2x+3y-11=0 | | X+.6X=240 | | 9m+8=98 | | (10.4)25= | | 7x-10=11x-42 | | 25(2*2)= | | 0=-4.9x^2+5x+10 | | -5-7(4-3b)=-159 | | 9(b+1)=63 | | 15s-12-s=5 | | 6y-15=39 | | (10.4)25=10 | | 8(6x+4)=320 | | -16=8(5+7k) | | X^2-5x+13=7 | | -5(7r-7)-5r=-125 | | x^4-12x^3+14x^2-14x+5=0 | | 25(2.2)= | | -3(0+3)=3(y+1-4) |