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80^2 - 45^2 = a^2 - b^2

ans pls in working, thnx in advance

1 Answer

3 votes

Answer:


{a}^(2) - {b}^(2)= {(80)}^(2) -{(45)}^(2) \\(a + b)(a - b) = (80 + 45)(80 - 45) \\ = 125 * 35 = \boxed{ 4375}✓

4375 is the right answer.

User Marise
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