Question

find the roots of equation X cube - ( a + b + c) x square + ( AB + BC + CA) x - ABC = 0​

Answer 1

Answer:

x³-(a+b+c)x²+(ab+BC+CA)x-abc=0

Step-by-step explanation:

x³-(a+b+c) x²+(ab+BC+CA)x-abc=0

-(a+b+c)+(ab+BC+CA) is cutted,

=+(a+b+c)

=x³+(a+b+c)x²=0

(a+b+c)x³-x²°=(a+b+c)x=0