Question

√45-3√20+4√5 plz tell me with full explanation.​

Answer 1

Answer:

Step-by-step explanation:

√45 -3√20 +4√5

=(√9 × √5) -3 (√4 × √5) + 4√5

=3√5 -3 × 2√5 + 4√5

=3√5 -6√5 +4√5

=7√5 - 6√5

=√5

Hope it is clear

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