If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 3x2 + 21x + 42 = 0 Reorder the terms: 42 + 21x + 3x2 = 0 Solving 42 + 21x + 3x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(14 + 7x + x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(14 + 7x + x2)' equal to zero and attempt to solve: Simplifying 14 + 7x + x2 = 0 Solving 14 + 7x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-14' to each side of the equation. 14 + 7x + -14 + x2 = 0 + -14 Reorder the terms: 14 + -14 + 7x + x2 = 0 + -14 Combine like terms: 14 + -14 = 0 0 + 7x + x2 = 0 + -14 7x + x2 = 0 + -14 Combine like terms: 0 + -14 = -14 7x + x2 = -14 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 = -14 + 12.25 Reorder the terms: 12.25 + 7x + x2 = -14 + 12.25 Combine like terms: -14 + 12.25 = -1.75 12.25 + 7x + x2 = -1.75 Factor a perfect square on the left side: (x + 3.5)(x + 3.5) = -1.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
| 19x-22=8x+132 | | 2x^3+8x^2-x=0 | | x/8-1/5 | | 5x+3+20x+7=40x-35 | | 3.8=6.2-0.3x | | 8x+2+4x+6=20x-40 | | 3.8=6.2-9.3x | | -7(k+9)=9(k+-5)-14 | | 0.4(3h-3.1)=12.8 | | -6=b-180 | | 5n^2+17+22=0 | | 4(3r+5)=5r-29 | | 3.14x4/3 | | 809+x=1269 | | (6x^2+2x-9)+(8x^2-5x+1)-(3x-4)(7x+2)=0 | | -5d+13=4d-16 | | 5x^2+2=5x | | 2x/3-3/4=7/12 | | -16=4(u-1) | | 81x^2+10=46 | | -3(6-q)=15 | | 5(v+3)=30 | | d+4.4=-6.2 | | -87=-9-9x | | x^4+x^3-x^2-x=0 | | r+-4.6=-5.9 | | Log(2x)+Log(15)=2 | | 8(2d+5)-3(8d+-9)=-21 | | p+0.8=-6.8 | | 4j^2=5j | | (8x)/(3x-5)^3-(36x^2)/(3x-5)^4) | | -5.5=p+0.1 |