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 + 84 = 0 Reorder the terms: 84 + 4x + x2 = 0 Solving 84 + 4x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-84' to each side of the equation. 84 + 4x + -84 + x2 = 0 + -84 Reorder the terms: 84 + -84 + 4x + x2 = 0 + -84 Combine like terms: 84 + -84 = 0 0 + 4x + x2 = 0 + -84 4x + x2 = 0 + -84 Combine like terms: 0 + -84 = -84 4x + x2 = -84 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 = -84 + 4 Reorder the terms: 4 + 4x + x2 = -84 + 4 Combine like terms: -84 + 4 = -80 4 + 4x + x2 = -80 Factor a perfect square on the left side: (x + 2)(x + 2) = -80 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 8(x+3)=2(x-36) | | 20-2n=10 | | a+b=a-b | | 8(3-y)=2+3y | | 4p+3r+7-p+2r-6= | | 5.7x=3 | | 47-6x=12x-15 | | 1/2=12x | | z=3x+8y | | (3x+8)/(8x-2)-(x+8)/(8x-2) | | 2ln(x-6)=0 | | (6y-7)/(6y+7) | | 18a+72= | | 5x+127=12x-6 | | 8m-14=3m+16 | | -56-8x+8x+24= | | 2c-5=b+23 | | 100-5h=0 | | 5(a-1)=10 | | 7y+4b=25+4*7-by | | 2n+7=5n-n | | 20-2g=6 | | 5x-3=12-52 | | 28-(-18)/-2-15(-2)(-6)/3 | | 7x+12=95+x | | 7x+12=95+3 | | 3x-1/4-5=x/2+1 | | 7y+bx=25+7x-by | | N/5+4=0 | | 28-(-18)/-2 | | 8x^25554466= | | 17x-4+(12-14x)=0 |