Question
Evaluate the following: $34 \times 36$

Answer

Here, we will use the identity $(x + a)(x + b) = x^2+ (a + b)x + ab.$
$34 × 36$
$= (30 + 4) (30 + 6)$
$= 30^2+ (4 + 6)30 + 4 × 6$
$= 900 + 300 + 24$
$= 1224$

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