Question

find the square of За – 2b - 5c

Answer 1

Step-by-step explanation:

(3a−2b−5c)

2

=(3a)

2

+(−2b)

2

+(−5c)

2

+(2×3a×−2b+2×(−2b)×(−5c)+2×−5c×3a)

=9a

2

+4b

2

+25c

2

−12ab+20bc−30ac

hope it will help you

Answer 2

Answer:

I hope it is helpful for you