(2×+1)²= (×-3)= (5a)³= (2×y)²= (3×)3= (4p²q)²=

(2×+1)²= (2x+1)(2x+1) = 4x²+2x+2x+1 = 4x²+4x+1
(×-3)= x-3
(5a)³=5³a³ = 125a³
(2×y)²=2²x²y²=4x²y²
(3×)³ = 3³x³ = 27x³
(4p²q)² = 4²p²'²q² = 16p⁴q²

maaf kalo salah+ gajelas:)