BINARIES-1

If p*k = 4pk + p – 2k; find 3*2.

Solution

p*k = (4 x p x k) + p – (2xk)   [rewriting the given expression more clearly]

3*2 = (4 x 3 x 2) + 7 – (2x2)   [substituting 7 for p and 2 for k]

3*2 = 24 + 7 – 4

3*2 = 31 – 4   [we add first before subtracting]

3*2 = 27.

Hence   (3*2) = 27.

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 If p*k = 2p - k – 5pk; find (-3*4).