1) x²(3 + 2x) - x(2x + 3)² = x(2x+ 3)(x - 2x - 3) = x(2x + 3)(- x - 3)
2) a(a - 5)³ + a²(a - 5)² = a(a - 5)²(a - 5 + a) = a(a - 5)²(2a - 5)
1) x²(3 + 2x) - x(2x + 3)² = x(2x+ 3)(x - 2x - 3) = x(2x + 3)(- x - 3)
2) a(a - 5)³ + a²(a - 5)² = a(a - 5)²(a - 5 + a) = a(a - 5)²(2a - 5)