Question

show that the square of an odd positive integers is of the form 8m+1 for some whole number m​

Answer 1

Answer:

$2 \times m \: is \: even \\ 2 \times 2 \times m \: is \: even \\ 2 \times 2 \times 2 \times m = 8m \: is \: even \\ so \: 8m + 1 \: is \: odd \: \\ because \: it \: is \: not \: divisible \: by \: 2 \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ hope \: it \: helps$

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