What is the H.C.F. of the polynomials 2x^2 + 4x and 4x^2 + 8x?

A. 2X

What is the product of 12 and 15?

A. 180
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In a mixed number coding system, 'COW' is coded as 11, 14, 17 and 'PIG' is coded as 15, 18, 21. What is the code for 'HEN'?

A. 12, 15, 18

Choose the odd letter group: AEF, BDF, CEG, DGH, EIJ

A. AEF

Using the Remainder Theorem, what is the remainder when the polynomial f(x) = x^3 - 4x^2 + 6 is divided by x - 2?

B. 2