Question

$2x ^{2} + 13x + 15$
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Answer 1

Solution :-

⇒ 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