Question

Find (6x²-5y)²by using identity

Answer 1

Answer:

Using identity (a - b)² = a²-2ab+ b²

Step-by-step explanation:

$( {6 {x}^{2} - 5y})^{2} \\ = { ({6x}^{2} })^{2} - 2(6 {x}^{2} )(5y) + {5y }^{2} \\ = 6 {x}^{4} - 60 {x}^{2} y + 5 {y}^{2} \\ = 6 {x}^{2} ( {x}^{2} - 10y) + 5y$