Question

Find (3a - 0.6bc)² using Identity II​

Answer 1

Step-by-step explanation:

$({3a - 0.6c})^{2} \\ \\ {a}^{2} + {b}^{2} - 2ab \\ use \: this \: identity \\ \\ {3a}^{2} + {0.6c}^{2} - 2 \times 2a \times 0.6c \\ \\ {3a}^{2} \times 2a + {0.6c}^{2} \times 0.6c - 2 \\ do \: the \: rest \: by \: yourself$

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