1 answer

How do you simplify #(sqrt5-1)(sqrt5+3)#?

Question:

How do you simplify #(sqrt5-1)(sqrt5+3)#?

Answers

#2+2sqrt5#

Explanation:

Expand the brackets by using the FOIL method.

Multiply the First terms, the outside terms, the inside terms and the last terms.

#(sqrt5-1)(sqrt5+3)#
#=5+3sqrt5-sqrt5-3#
#=2+2sqrt5#

.

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