Science Quiz / Difference of Squares (algebra)

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Can you name the product of these differences of squares (algebra)?

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Score 0/30 Timer 04:00
(a+b)×(a-b)producta² - b²
87×73
530×470
615×585
21×19
112×88
340×260
99×81
509×491
808×792
510×490
107×93
604×596
811×789
105×95
725×675
(a+b)×(a-b)producta² - b²
325×275
65×55
32×28
208×192
814×786
310×290
415×385
714×686
205×195
713×687
54×46
43×37
76×64
308×292
715×685

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