Question

find the roots of :-
z² + 2√2z - 6 = 0​

Answer 1

Answer:

z^2+2✓2z-6

Step-by-step explanation:

z^2+2✓2z-6

z^2+3✓2z-✓2z-6

z(z+3✓2)-✓2(z+3✓2)

(z+3✓2)(z-✓2)

zeroes are -3✓3 and ✓2