计算:758²-258²

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计算:758²-258²

计算:758²-258²
计算:758²-258²

计算:758²-258²
=(758+258)×(758-258)
=1016×500
=508000

(758-258)(758+258)
=500*1016
=508000

758²-258²
=(758+258)x(758-258)
= 1016x500
= 508000