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Tati_Lee
Group Title
please help!
Explain, in complete sentences, how you would factor 27x4 – 90x2 + 75.
Provide the factors
 2 years ago
 2 years ago
Tati_Lee Group Title
please help! Explain, in complete sentences, how you would factor 27x4 – 90x2 + 75. Provide the factors
 2 years ago
 2 years ago

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cwrw238 Group TitleBest ResponseYou've already chosen the best response.0
notice that 27, 90 and 75 are all divisible by 3 so we can write 3(9x^4  30x^2 + 25) now you can try to factor whats in parentheses
 2 years ago

cwrw238 Group TitleBest ResponseYou've already chosen the best response.0
we must now look for 4 numbers which are factors of 9 and 25 which give us a product of 25 and when multiplied and added give us the middle number 30 to give factors of the form (ax^2 + b)(cx^2 + d)
 2 years ago

Tati_Lee Group TitleBest ResponseYou've already chosen the best response.1
3(3x^25)(3x^25)
 2 years ago

Tati_Lee Group TitleBest ResponseYou've already chosen the best response.1
is that right?
 2 years ago

cwrw238 Group TitleBest ResponseYou've already chosen the best response.0
I do this by trial and error  yeah  thats right  why are you asking?!!
 2 years ago

Tati_Lee Group TitleBest ResponseYou've already chosen the best response.1
sorry i was just making sure o.O
 2 years ago

eyust707 Group TitleBest ResponseYou've already chosen the best response.0
great job!
 2 years ago

cwrw238 Group TitleBest ResponseYou've already chosen the best response.0
thats ok  thats as far as you can go 3x^ 5 won't factor
 2 years ago

Tati_Lee Group TitleBest ResponseYou've already chosen the best response.1
thank you eyust & ohhh okay thanks & you're a little fiesty lolol
 2 years ago

Tati_Lee Group TitleBest ResponseYou've already chosen the best response.1
eyust you never answer my last question on the other problem
 2 years ago

cwrw238 Group TitleBest ResponseYou've already chosen the best response.0
yeah  good luck
 2 years ago
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