Question

Splitt middle term x2 minus 2root5x minus 15

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

X=5√5 OR X= -3√5

Step-by-step explanation:

X² - 2√5X - 15

X² + 3√5X - 5√5X - 15

X(X+3√5) -5√5(X+3√5)

( X+3√5 )( X-5√5 )

Either X=-3√5 or,X= 5√5