Question

SOLVE (x+5)(x+3) USING SUITABLE IDENTITY. ​

Answer 1

Answer:

Given that ;

( x + 5 )( x + 3 )

Identity :

( x + a )( x + b ) = x² + ( a + b )x + ab

( x + 5 )(x + 3 )

a = 5 ; b = 3

= x² + ( 5 + 3 )x + 5 × 3

= x² + 15x + 15