Question

find the square of the following numbers 32

Answer 1

The square of 32 is 1024. Because 32*32=1024.

Answer 2

32=30+1

a=30,b=2

$(a + b) {}^{2} = a {}^{2} + 2ab + b {}^{2} \\ \\ (30 + 2) {}^{2} = 30 {}^{2} + 2 \times 30 \times 2 - + 2 {}^{2} \\ 32 {}^{2} = 900 + 120 + 4 \\ 32 {}^{2} = 1024$