find the value of p.
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Answered by
1
Step-by-step explanation:
Given that :-
abp=(3a+b)²-(3a-b)²
(since (a+b)²=a²+2ab+b²
(a-b)²=a²-2ab+b²)
here a=3a, b=b
=>abp=[(3a)²+2(3a)(b)+b²]-[(3a)²-2(3a)(b)+b²)]
=>abp=(9a²+6ab+b²)-(9a²-6ab+b²)
=>abp=9a²+6ab+b²-9a²+6ab-b²
=>abp=(9a²-9a²)+(6ab+6ab)+(b²-b²)
=>abp=0+12ab+0
=>abp=12ab
=>p=12ab/ab
(cancelling ab)
=>p=12
The value of p is 12
Answered by
1
Answer:
p=12
Step-by-step explanation:
abp = (3a + b)² - (3a - b)²
abp = 9a² + b² + 6ab - (9a² + b² - 6ab)
abp = 9a² + b² + 6ab - 9a² - b² + 6ab
abp = 6ab + 6ab
abp = 12ab
p = 12
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