Question

112x106 using identity​

Answer 1

$112 \times 106$

$= (100 + 12)(100 + 6)$

$using \: identity \: (x + a)(x + b) = x {}^{2} + (a + b)x + ab$

$= 100 {}^{2} + (12 + 6)100 + 12 \times 6$

$= 10000 + 1800 + 72$

$= 11872$