How to answer #(4+5sqrt3)^2# ? How to simplify the answer here?

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How to answer #(4+5sqrt3)^2# ? How to simplify the answer here?

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Answer 1 · 2018-04-10T03:55:15

#91+40sqrt3#

Explanation:

#(4+5sqrt3)^2#
#rArr 4^2+2*4*5sqrt3+(5sqrt3)^2#
#color(blue)(Since,(a+b)^2=a^2+2ab+b^2#
#rArr 16+40sqrt3+25*3#
#rArr 16+75+40sqrt3#
#rArr 91+40sqrt3#

That's it,
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How to answer #(4+5sqrt3)^2# ? How to simplify the answer here?

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