Question

2√45 - 2√5 = ?

what is the answer

Answer 1

Answer:

Step-by-step explanation:-

2√45 - 2√5 = 2√9*5 - 2√5

= 6√5 - 2√5 = (6-2)√5

=4√5

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Answer 2

Answer: 4√5

Step-by-step explanation:

2√45 - 2√5

= 2√(3×3×5) -2√5

= 2×3√5 - 2√5

= 6√5 - 2√5

= 4√5

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