Question

expand using suitable identity(2a-3b+c)^2

Answer 1

Answer:

4a² + 9b² + c² - 12ab - 6bc + 4ac

Step-by-step explanation:

According to the Q,

>> (2a - 3b + c)²

Using Formula (a + b + c)² = a² + b² + c² + 2ab + 2bc + 2 ac

>> (2a)² + (-3b)² + c² + (2*2a*-3b) + (2*-3b*c) + (2* 2a*c)

>> 4a² + 9b² + c² - 12ab - 6bc + 4ac

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