Question

21.21.Write down the expression for the sum of numbers a and b which is subtracted from their product: *
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Answer 1

Answer:

$a + b - a \times b$

Answer 2

$\textrm{Required Answer = Product of 'a' and 'b' - Sum of 'a' and 'b'}$

$\longrightarrow\textrm{Required Answer = (a \times b) - (a + b) = ab - (a + b) = ab - a - b}$