Verified Answer :

Wait I think it's 9x-3.. Sorry...

faizu

=>(4x - 3) (x + 5)

=>(4x × x )+( 4x × 5) - (3 × x ) -( 3 × 5)

=>4x^2 + 20x -3x - 15

=>4x^2 + 17x -15

Hope it helps!!!