Question

(2x-3y)² resposta por favor

Answer 1

(2x-3y)² 

(2x)​^2​​−2×2x×3y+(3y)​^2​​

2​^2​​x​^2​​−2×2x×3y+(3y)^​2​​

4x​^2​​−2×2x×3y+(3y)​^2​​

4x​^2​​−2×2x×3y+3​^2​​y^​2

4x​^2​​−2×2x×3y+9y​^2​​

4x^​2​​−12xy+9y^​2​​