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shahid

· started a discussion

· 1 Months ago

- 15x^2??

Question:

If x = 5 +  523    + 513   , then find the value of x3 + 15x2 + 60x – 70 –

Options:
A)

15

B)

10

C)

125

D)

100

Solution:

Ans: (b)

  

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