How do you simplify $(3² + 3)²$ ?

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Answer 1 · 2016-05-17T17:42:49

$(3^2+3)^2=144$

$(3^2+3)^2=(3^2+3xx1)^2$

= $(3xx(3+1))^2$

= $(3xx4)^2=12^2=144$

How do you simplify (3² + 3)²(3² + 3)²?