Use the Perfect Square Trinomial and provide the first step to calculating 42^2 without a calculator.
(46 - 4) 2
(46 + 4) 2
(40 - 2) 2
(40 + 2) 2
+4
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Home » Mathematics » Use the Perfect Square Trinomial and provide the first step to calculating 42^2 without a calculator. (46 - 4) 2 (46 + 4) 2 (40 - 2) 2 (40 + 2) 2