Question

expand (3x-8) (3x+8)​

Answer 1

Answer:

9x^2 - 64

Step-by-step explanation:

( 3x - 8 ) ( 3x + 8 )

Formula / Identity : -

( a - b ) ( a + b ) = a^2 - b^2

Here,

a = 3x

b = 8

( 3x - 8 ) ( 3x + 8 )

= ( 3x )^2 - 8^2

= 9x^2 - 64