If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 3x + -15 = 0 Reorder the terms: -15 + 3x + x2 = 0 Solving -15 + 3x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '15' to each side of the equation. -15 + 3x + 15 + x2 = 0 + 15 Reorder the terms: -15 + 15 + 3x + x2 = 0 + 15 Combine like terms: -15 + 15 = 0 0 + 3x + x2 = 0 + 15 3x + x2 = 0 + 15 Combine like terms: 0 + 15 = 15 3x + x2 = 15 The x term is 3x. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3x + 2.25 + x2 = 15 + 2.25 Reorder the terms: 2.25 + 3x + x2 = 15 + 2.25 Combine like terms: 15 + 2.25 = 17.25 2.25 + 3x + x2 = 17.25 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 17.25 Calculate the square root of the right side: 4.153311931 Break this problem into two subproblems by setting (x + 1.5) equal to 4.153311931 and -4.153311931.Subproblem 1
x + 1.5 = 4.153311931 Simplifying x + 1.5 = 4.153311931 Reorder the terms: 1.5 + x = 4.153311931 Solving 1.5 + x = 4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 4.153311931 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 4.153311931 + -1.5 x = 4.153311931 + -1.5 Combine like terms: 4.153311931 + -1.5 = 2.653311931 x = 2.653311931 Simplifying x = 2.653311931Subproblem 2
x + 1.5 = -4.153311931 Simplifying x + 1.5 = -4.153311931 Reorder the terms: 1.5 + x = -4.153311931 Solving 1.5 + x = -4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -4.153311931 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -4.153311931 + -1.5 x = -4.153311931 + -1.5 Combine like terms: -4.153311931 + -1.5 = -5.653311931 x = -5.653311931 Simplifying x = -5.653311931Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.653311931, -5.653311931}
| n-10=20 | | x+13=-10 | | z+32=-6 | | 2+z=3-4 | | m-7=5 | | -12a=72 | | 2.85p-3.95=9.7p+9.75 | | -125-8x=8x+18 | | -29.2=1.7n+5.8+5.3n | | -2(x-8)=-10 | | x-5=-10 | | -9x^2+4x-7=x(4+9x)-7 | | 4x-2=13x-36 | | 3x+29=13x-21 | | 100=-5x^2+100-250 | | 5-7x=35-14x | | -127-9x=7x+17 | | 4(2x-1)-3=9(x-4) | | 48-3x=6x+20 | | 3(8x-1)=12 | | 2x+20=9x-50 | | 5-10x=57-24x | | (K+8)k=64 | | 5x+9=-126-10x | | 107-2x=5x+16 | | (3.5x+1.7)+(9.1x-0.3)= | | 7y-5=6y+5 | | (3.5x+1.7)+(9.1x-..0.3)= | | q^2+q=0 | | y^2+2y+1=0 | | 5x+8+12x+2=180 | | 3n(4n+5n)= |