Question

I Factorise by splitting midelle term
i) x²+2x - 15​

Answer 1

Answer:

$x {}^{2} + 2x - 15$

$x {}^{2} - 3x + 5x - 15$

$x(x - 3) + 5(x - 3)$

$= (x + 5)(x -3)$

HENCE,

X= -5 , 3.

HOPE IT HELPS :)

Answer 2

Step-by-step explanation:

=> x² + 2x - 15

=> x² - 3x + 5x - 15

=> x(x - 3) + 5(x - 3)

=> (x - 3) ( x + 5)