Factorise 2x2+11x+15
(x−5)(2x−3)
(x+3)(2x+5)
(x+5)(2x−3)
(x−5)(2x+3)
2x2+11x+15 = 2x2+6x+5x+15 (Since 15 x 2= 30, it can be split as (6 )+(5) = 11 and 6 x 5=30 ) = (2x(x+3)+5(x+3) = (x+3)(2x+5)
What is the factorization of 2x2−7x−15?