Question

find the root of polynomial x sqaure+ 2x - 15 ​

Answer 1

Step-by-step explanation:

Given:

x2 - 2x - 15

Calculation:

x2 - 2x - 15

⇒ x2 - 5x + 3x - 15

⇒ x(x - 5) + 3(x - 5)

⇒ (x - 5)(x + 3)

⇒ x = 5, -3

Answer 2

Step-by-step explanation:

REFER THE ATTACHMENT FOR DETAILED SOLUTION.

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