Question

Using suitable identity solve (6x2 - 5y)2​

Answer 1

Answer:

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Step-by-step explanation:

$({6x}^{2} - 5y) {}^{2} \\ \\using \: \: identity \: \: (x - y) {}^{2} = x {}^{2} - 2xy+ {y}^{2} \\ \\ ({6x}^{2} - 5y) {}^{2} = (6 {x}^{2}) {}^{2} - 2(6 {x}^{2} )(5y) + (5y) {}^{2} \\ \\ 1296 {x}^{2} - 2(36 {x}^{2} )(5y) + 25 {y}^{2} \\ \\ 1296 {x}^{2} - 360 {x}^{2} + 25 {y}^{2} \\ \\ 936 {x}^{2} + 25 {y}^{2}$