Question

x2 + 2_/5x - 15 find zeroes of quadratic polynonial

Answer 1

Step-by-step explanation:

x^2+2root5x-15

x^2+3root5x-root5x-15

x(x+3root5)-root5(x+3root5)

(x-root5)(x+3root5)

hence the zeroes are=)

x=root5,x=-3root5

:-)