Question

find the following using suitable identity (p-5)(p-4)​
class 8
algebraic identities

Answer 1

Step-by-step explanation:

Identity =>

( x + a ) ( x + b ) => x^2 + ( a+b )x + ab

( p - 5 ) ( p - 4 )

=> p^2 + ( -5-4 )p + (-5)(-4)

=> p^2 - 9p + 20

hope that helps ✌