Which shows 42^2 β 38^2 being evaluated using the difference of perfect squares method?
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Mathematics, 03.11.2019 23:31 Afranker8778
Which shows 42^2 β 38^2 being evaluated using the difference of perfect squares method?
a) 42^2 β 38^2 = (1,764 β 1,444)(1,764 + 1,444) = 1,026,560
b) 42^2 β 38^2 = 84 β 76 = 8
c) 42^2 β 38^2 = (42 β 38)^2 = (4)^2 = 16
d) 42^2 β 38^2 = (42 + 38)(42 β 38) = (80)(4) = 320
Answers: 1
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