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4 years ago

7

Simplify root45 - root20 +4root5

1 answer:

swat324 years ago

4 0

Answer:

( -3√5)

Step-by-step explanation:

√45 - √20 - 4√5 = √5*3*3 - √2*2*5 - 4√5

= 3√5 - 2√5 - 4√5

= √5 (3 - 2 - 4)

= ( -3√5)

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