Question

Prove that V81 – 8 V216 + 15 V32 + V225 = 0​

Answer 1

Answer:

24 - 48√6 + 60√2​

Step-by-step explanation:

√81 – 8 √216 + 15 √32 + √225 =

9 - 8√36*6 + 15√16*2 + 15 =

24 - 48√6 + 60√2​

Answer 2

Answer:

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Step-by-step explanation:

4

81

−8

3

216

+15

5

32

+

225

=(3

4

)

4

1

−8(6

3

)

3

1

+15(2

5

)

5

1

+15

=3−8×6+15×2+15

=3−48+30+15

=48−48

=0