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Simplify the expression 7√7 - 2√28
51.7k views
5 votes
Simplify the expression

7√7 - 2√28

User SMka
by
7.8k points

2 Answers

2 votes
7squareroot7-2squareroot28
=7squareroot7-2×2squareroot7
=7squareroot7-4squareroot7
=3squareroot7
=3×2.64
=7.92
User Jimmy Lu
by
8.1k points
3 votes
7√7 - 2√28

2 sqrt(28) = 4 * sqrt(7)

7*sqrt(7) - 4*sqrt(7) =

3 * sqrt(7)

User Gzorg
by
8.8k points
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