Respuesta :

Step-by-step explanation:

[tex] {(9p - 5q)}^{2} [/tex]

Hence according to ,

[tex] {(a - b)}^{2} = {a}^{2} - 2ab + {b}^{2} [/tex]

So,

[tex] {(9p)}^{2} - 2 \times 9p \times 5q + {(5q)}^{2} [/tex]

[tex]81 {p}^{2} - 90pq + 25 {q}^{2} (ans)[/tex]

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