Question

j2^10j^21=0 product of the roots​

Answer 1

Step-by-step explanation:

Step-1 : Multiply the coefficient of the first term by the constant   1 • 21 = 21 

Step-2 : Find two factors of  21  whose sum equals the coefficient of the middle term, which is   -10 

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -7  and  -3 

                     j2 - 7j - 3j - 21