So find the products using suitable property.
258 X 2 +(-98) X(-258)
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Answer:
The answer was = 258 × 2 + (-98) x (-258)
= 258 × 2 + (-98 × -1) ×258
= 258 × 2 + 258 × 98
= 258 (98 + 2)
= 258 × 100
= 25800
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