(5a+3c)³ - (5a-3c)³
Answers
Answered by
3
⇒Answer :
Equation is - 5a+3c)³ - (5a-3c)³
∴5a+3c)³ - (5a-3c)³
∴ 15a + 9c - ( 15a - 9c )
∴ 15a + 9c - 15a + 9c ------ ( 15a gets cancelled )
∴ 9c = 9c
∴18c
⇒18c is the Answer
Answered by
1
Answer:
90ac(a+c)
Step-by-step explanation:
(5a + 3c)³ - (5a - 3c)³
=> (125a³ + 27c³ + 45a²c + 45ac²) - (125a³ + 27c³ - 45a²c - 45ac²)
=> 125a³ + 27c³ + 45a²c + 45ac² - 125a³- 27c³ + 45a²c + 45ac²
=> 90a²c + 90ac²
=> 90ac(a+c)
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