Question

find the roots of
$2 {x }^{2} - 13x + 15$
​

Answer 1

Step-by-step explanation:

⇒ 2x² + 13x + 15

⇒ 2x² + 13x + 15 [By splitting middle term]

⇒ 2x² + 10x + 3x - 15

⇒ 2x ( x + 5 ) + 3 ( x + 5 )

⇒ ( 2x + 3 ) ( x + 5 )

To Find zeroes :-⇒ ( 2x + 3 ) ( x + 5 ) = 0

Taking 2x + 3 = 0⇒ 2x = - 3

⇒ x = - 3/2

Taking x + 5 = 0

⇒ x = - 5