Question

(2) (3k -4r -2m)2 - (3k + 4r - 2m)? By expansion
formulae of (a+b+c)​

Answer 1

Answer:

p2−25q2+10pq+20q+p+4. B ... (p+5q+2)2. Using,(a+b+c)2=a2+b2+c2+2ab +2bc+2ca ... (3k−4r−2m)2+(3k+4r−2m)2.

Answer 2

Step-by-step explanation:

(p+5q+2)

2

Using,(a+b+c)

2

=a

2

+b

2

+c

2

+2ab+2bc+2ca

=(p)

2

+(5q)

2

+(2)

2

+2×p×(5q)+2×(5q)×(2)+2×(2)×(p)

=p

2

+25q

2

+10pq+20q+4p+4