Question

Expanding bracket102*103

Answer 1

hey mate!!

here's ur answer:-)

$(102 \times 103) \\ (100 + 2)(100 + 3) \\ \\ using \: identity \: \\ (x + a)(x + b) = \\ x {}^{2} + (a + b)x + ab \\ \\ 100 {}^{2} + (2 + 3)100 + 2 \times 3 \\ 10000 + 500 + 6 \\ 10506$

hope it helps