Find the shortcut.
Solve these problems. Then find and explain a shortcut method for finding the answer.
52(Squared) - 42 (squared) =
82 (Squared) - 72 (Squared) =
122 (Squared) - 112 (Squared) =
312 (Squared) - 302 (Squared) =
892 (Squared) - 882 )(Squared =
1 answer
I know now Add them together without squaring.
2 answers