If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 9x = -21 Reorder the terms: 9x + x2 = -21 Solving 9x + x2 = -21 Solving for variable 'x'. Reorder the terms: 21 + 9x + x2 = -21 + 21 Combine like terms: -21 + 21 = 0 21 + 9x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-21' to each side of the equation. 21 + 9x + -21 + x2 = 0 + -21 Reorder the terms: 21 + -21 + 9x + x2 = 0 + -21 Combine like terms: 21 + -21 = 0 0 + 9x + x2 = 0 + -21 9x + x2 = 0 + -21 Combine like terms: 0 + -21 = -21 9x + x2 = -21 The x term is 9x. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9x + 20.25 + x2 = -21 + 20.25 Reorder the terms: 20.25 + 9x + x2 = -21 + 20.25 Combine like terms: -21 + 20.25 = -0.75 20.25 + 9x + x2 = -0.75 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = -0.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
| (5v-3)(5-v)=0 | | -3(x-7)+7x=4(x+6) | | 3(2x-5)+2x=2(4x+1) | | 10=-3v+10 | | 3(2x-5)+2x= | | -4-k=-1+5k+3-6k | | 5+-11=-5+6t | | 8z-23=51+z | | -5x-9x=56 | | 28-x=7-4x | | -8-18=-162 | | -22=8+5x | | -7y=6 | | 1-7(-z+3)=-2(-9z-6)-3 | | -7w-13=-w | | 2x-3x=9 | | 5x^2+20=16x | | 5(x-1)=-20 | | -5=(p+2) | | 16z^2+8z-3=0 | | 7x-6=x^2 | | 5x^2-144=0 | | 5k+2=-13 | | 22x^2+123x+11=0 | | 4.5(x-1)=20 | | 5x+3y=34 | | 5x+3x=34 | | 169x^2-4=0 | | 7+2*4= | | 4x-3=-5x+6 | | 3-4x(-1)= | | (-5)=3-4(-5) |