А) (х+3)^2-4у^2=(х+3+2у)(х+3-2у)
а) x² – 6x + 9 – 4y² = (x – 3)² – (2y)² = (x – 3 – 2y)(x – 3 + 2y)
б) 24a⁴ – 3ab³ = 3a(8a³ – b³) = 3a((2a)³ – b³) = 3a(2a – b)(4a² + 2ab + b²)
