Math, asked by prithikaa4, 1 year ago

factorise 81r power 2 - 1

shreenithi5: please prithi kaa

Answers

Answered by thentuvaralakshmi

3

81(r)^2-1
=(9r)^2-1^2
=(9r+1)(9r-1)

shreenithi5: please prithikaa is my sister pls answer her question akka

thentuvaralakshmi: is that 36 or 16

prithikaa4: 36

prithikaa4: pls fast

thentuvaralakshmi: (P^4-36)

thentuvaralakshmi: =(p^2)^2-6^2

thentuvaralakshmi: =(p^2+6)(p^2-6)

thentuvaralakshmi: =(p^2+6)(p+6)(p-6)

shreenithi5: thank you so much

thentuvaralakshmi: U r welcome

Answered by shreenithi5

1

One Akka has send the correct answer prithi

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