Question

(2x+3)(2x-8) factorise using suitable identity​

Answer 1

Answer:

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

( 2x + 3 ) ( 2x - 8 )

= ( 2x )^2 + ( 3 - 8 )2x + ( 3 )( -8 )

= 4x^2 + ( -10x ) + ( -24 )

= 4x^2 - 10x - 24