Question

factorise:x2-2x-15,,,,,,,​

Answer 1

Answer:

x2  +2x−15=(x−3)(x+5)

Step-by-step explanation:

To Factorise : x2  +2x−15

By splitting the middle term

=x2 +5x−3x−15

=x(x+5)−3(x+5)

=(x−3)(x+5)

So, x2  +2x−15=(x−3)(x+5)