2x/x^2-9 : 6x^2/ x^2-6x+9=
2x/x^2-9:6x^/x^2-6x+9=26x
2x/(x²-9) : 6x²/(x²-6x+9) =
Z: x²-9 ≠ 0
(x+3)(x-3) ≠ 0 => x ≠ -3 v x ≠ 3
x²-6x+9 ≠ 0
Δ = b²-4ac = 36-36 = 0
x = -b/2a = 6/2 = 3 => x ≠ 3
x ≠ -3, x ≠ 3
x²-9 = (x+3)(x-3)
x²-6x+9 = (x-3)²
= 2x/[(x+3)(x-3)] : 6x²/(x-3)² = 2x/[(x+3)(x-3)] · (x-3)(x-3)/6x² = (x-3)/[3x(x+3)] = (x-3)/(3x²+9x)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
2x/x^2-9:6x^/x^2-6x+9=26x
2x/(x²-9) : 6x²/(x²-6x+9) =
Z: x²-9 ≠ 0
(x+3)(x-3) ≠ 0 => x ≠ -3 v x ≠ 3
x²-6x+9 ≠ 0
Δ = b²-4ac = 36-36 = 0
x = -b/2a = 6/2 = 3 => x ≠ 3
x ≠ -3, x ≠ 3
x²-9 = (x+3)(x-3)
x²-6x+9 = (x-3)²
= 2x/[(x+3)(x-3)] : 6x²/(x-3)² = 2x/[(x+3)(x-3)] · (x-3)(x-3)/6x² = (x-3)/[3x(x+3)] = (x-3)/(3x²+9x)