1 answer

How do you expand and simplify #( \sqrt { 3} + \sqrt { 15} ) ^ { 2}#?

Question:

How do you expand and simplify #( \sqrt { 3} + \sqrt { 15} ) ^ { 2}#?

Answers

#18+2sqrt3sqrt15# or#31.416#

Explanation:

#(sqrt3+sqrt15)^2#

#:.=(sqrt3+sqrt15)(sqrt3+sqrt15)#

#:.=(sqrt3)^2+2sqrt3sqrt15+(sqrt15)^2#

#:.=3+2sqrt3sqrt15+15#

#:.=18+2sqrt3sqrt15# or#31.416#

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