Question

evaluate (-16.8)raised to 2 - (13.2)raised to 2​

Answer 1

Answer:

108

Step-by-step explanation:

(-16.8)² - (13.2)²

using identity (a²-b²) = (a+b)(a-b)

we get

(-16.8)² - (13.2)²

= (-16.8+13.2)(-16.8 - 13.2)

= ( -3.6 ) ( -30 )

= 108