(2) (3k -4r -2m)2 - (3k + 4r - 2m)? By expansion
formulae of (a+b+c)
Answers
Answered by
0
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.
Answered by
0
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
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