Question

factorise √2 x^2+ x - 15√2 by splitting middle term​

Answer 1

x^2 +2_/5x -15  

= x^2 + 3_/ 5 x - _/5 x -15  

= x ( x + 3_/5 ) -_/5 ( x + 3_/5)  

= (x- _/5) ( x+3_/5) .....  

"_/ this is the symbol of root "