Question

*If the cost of one pen is (a² + 10a + 25) then find the total cost of (a+5) numbers of such pens?*

1️⃣ ₹(a³ +15a²+75a+125)
2️⃣ ₹(a³ +25a²+25a+125)
3️⃣ ₹(a³ -15a²+75a - 125)
4️⃣ ₹(a² +25a+75)​

Answer 1

Answer:

2 is the answer....

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