Question

fill in the blanks .

1) 28²-12²=__________.
2) The square of an even number is___________.
3) The square of an odd number is ____________.
4) Additive inverse of -4/7 is_____________.

Answer 1

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$1) 28²-12²=__________.$

=$784-144$

=$640$

$2) The square of an even number is___________.$

=$even$

$3) The square of an odd number is ____________.$

=$odd$

$4) Additive inverse of -4/7 is_____________.$

=$4/7$

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