Question

z square + 7 Z - 144​

Answer 1

Step-by-step explanation:

i don't know how to do this question

Answer 2

Step-by-step explanation:

Hi DEAR,

YOU CAN APPLY QUADRATIC FORMULA TO FIND OUT THE ROOTS HERE..

-b±√b²-4ac/2a

7±√49-576/2

7±√-527/2

so here no real roots are present

imaginary roots are there...

hope it helps..