Question

Find the (42)
^2 without actual multiplication​

Answer 1

Answer:

42^2 = 1764

Square of 42 = 1764, which is proved without any actual multiplication.

Answer 2

$(42) {}^{2}$

$= (40 + 2) {}^{2}$

$= (40) {}^{2} + 2(40)(2) + (2) {}^{2}$

$= 1600 + 160 + 4$

$= 1764$

$\bold\orange{@RoyalBrainlyBoy}$