Show that: (6a – 3b)
2
+ 72ab = (6a + 3b)2
.
Answers
Answered by
1
Answer:
72ab*6a+72ab*3b
432ab+216ab
648ab
Answered by
0
Answer:
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Step-by-step explanation:
(6a-3b) ²+72ab
=(6a)²+(3b)²-2(6a)(3b) +72ab
=36a²+9b²-36ab+72ab
=36a²+9b²+36ab
=(6a+3b)²
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