Question

33*27Find the value using expansion formula.

Answer 1

BONJOUR,
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$33 \times 27 \\ (30 + 3)(30 - 3) \\ by \: using \: identity \: \\ (x + y)(x - y) = x {}^{2} - y { }^{2} \\ \\ 30 {}^{2} - 3 {}^{2} = 900 - 9 \\ = 891$

Answer 2

Answer:

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