If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 7x + 30 = 0 Reorder the terms: 30 + 7x + x2 = 0 Solving 30 + 7x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-30' to each side of the equation. 30 + 7x + -30 + x2 = 0 + -30 Reorder the terms: 30 + -30 + 7x + x2 = 0 + -30 Combine like terms: 30 + -30 = 0 0 + 7x + x2 = 0 + -30 7x + x2 = 0 + -30 Combine like terms: 0 + -30 = -30 7x + x2 = -30 The x term is 7x. Take half its coefficient (3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. 7x + 12.25 + x2 = -30 + 12.25 Reorder the terms: 12.25 + 7x + x2 = -30 + 12.25 Combine like terms: -30 + 12.25 = -17.75 12.25 + 7x + x2 = -17.75 Factor a perfect square on the left side: (x + 3.5)(x + 3.5) = -17.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 3-x=3 | | 3(2x-4)+2x+5+4(2x-3)=13 | | 5+2(2x-4)=3(2x-1) | | 5y+10x=10 | | 4(3+f)+6f=324 | | 7x+3y=49 | | 1/2*20*x+2 | | -68=-2(7v+6)-2(4-4v) | | 0.6(x−1,000)+1.5=2.4+0.3x | | 16.8/8=n | | (3x+1)(5x-2)=0 | | 0.4x+0.25(58-x)=32 | | -13+4x=1+5x-6 | | 5x+5y=65 | | 9y-4=23+9y | | 16.8/2.4= | | 1-6(6+c)=-53 | | -8-(-16)= | | x^2+x+1.25=0 | | 4x^2+7x-15=15 | | 1/2x20(x+2) | | (2x+9)+(3x-1)= | | 168/-8 | | -8-(-4) | | 2x+4+4+2x=x+10 | | 9x-2y=22 | | 0.4x+0.25(149-x)=31 | | x/6(x-30y+1) | | 5+2y=y+7 | | 8x-7y=-17 | | 3+3(2x-1)=-18+3x | | 8-7x=-21 |