Question

please help it's very important


simplify : 7√5 - 4√5 - 2√5

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Answer 1

Answer:

7√5 - 4√5 - 2√5

=3√5-2√5

=√5

Answer 2

7√5 - 4√5 -2√5

= √5(7-4-2)

= √5(3-2)

=√5(1)

=√5

$7 \sqrt{5} - 4 \sqrt{5} - 2 \sqrt{5} = \sqrt{5}$

is the answer