find the product using suitable properties (-17)×(-29)
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Answered by
11
Answer:
493
Step-by-step explanation:
(-17)×(-29)
= (-20 + 3) * (-30 + 1) ∵ -20 + 3 = -17 and -30 + 1 = -29
= (-20 * -30) + (-20 * 1) + [3 * (-30)] + (3 * 1) ∵ (a + b) * (c + d) = ac+ad+bc+bd
= 600 - 20 - 90 + 3
= 493
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