If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + 3r + 4 = 0 Reorder the terms: 4 + 3r + r2 = 0 Solving 4 + 3r + r2 = 0 Solving for variable 'r'. Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + 3r + -4 + r2 = 0 + -4 Reorder the terms: 4 + -4 + 3r + r2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3r + r2 = 0 + -4 3r + r2 = 0 + -4 Combine like terms: 0 + -4 = -4 3r + r2 = -4 The r term is 3r. 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. 3r + 2.25 + r2 = -4 + 2.25 Reorder the terms: 2.25 + 3r + r2 = -4 + 2.25 Combine like terms: -4 + 2.25 = -1.75 2.25 + 3r + r2 = -1.75 Factor a perfect square on the left side: (r + 1.5)(r + 1.5) = -1.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 3.5x+25=165 | | =(9x^3+x^2+9x-7) | | -13-4x=11-10x | | 6(t-7)+8(-5t-8)=-35(3+t)-8 | | 2(z-21)+4(z-4)=44 | | 5y-8=37 | | 0=2w+5 | | 3(x-2)+9=2(x+4) | | (3y-7)=(2y+4) | | 3y+12=27 | | 6z+9=6z-z | | 17x-(8x-2)=74 | | 15=6+9(x-6) | | (5x)=(3x+18) | | 2(x+2)=18 | | 5x=(x+18) | | x^4-9x^3+21x^2-x-30=0 | | x^4-9x^3-21x^2-x-30=0 | | 32=0.66x-34 | | x^3-4x^2-3x+12=0 | | 9(2x-8)=3(6x+9) | | 15=9-6x | | (4y)+(3y)=180 | | .5x=1.45 | | (3x-18)+(2x+12)=180 | | 2(2)+4=2x | | 3a-3(7+5a)=9(2+a) | | (4y)+(3x-18)+(3z)+(2x+12)=360 | | 2(2)+4=x | | 12x-25=6x+15 | | (19x-17)-(3x-72)= | | 8(120)=x |