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ahoymewmew
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what is the factor of this trinomial a2 + 4ab – 45b2?
 2 years ago
 2 years ago
ahoymewmew Group Title
what is the factor of this trinomial a2 + 4ab – 45b2?
 2 years ago
 2 years ago

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ChmE Group TitleBest ResponseYou've already chosen the best response.1
Because it is + then  we know it needs to be in the form ( a + b )( a  b )
 2 years ago

ChmE Group TitleBest ResponseYou've already chosen the best response.1
I would first look at the coefficient of b^2 which as 45 and write down all the numbers when multiplied will give you 45.
 2 years ago

ChmE Group TitleBest ResponseYou've already chosen the best response.1
Then look at these numbers and see which two when added will give you 4. And excuse my last post, I should have said find all the products that will give you 45
 2 years ago

ChmE Group TitleBest ResponseYou've already chosen the best response.1
Let me know if you are still stuck
 2 years ago

ahoymewmew Group TitleBest ResponseYou've already chosen the best response.0
@ChmE so you multiply all the products that equal to 45 and then add the two that will give you 4?
 2 years ago

ChmE Group TitleBest ResponseYou've already chosen the best response.1
That is a thought process for solving it. 9,5 9,5 1,45 1,45 I think thats it. Then you think what numbers, when added will give me 4. you see 9,5
 2 years ago

ChmE Group TitleBest ResponseYou've already chosen the best response.1
and if you look at my first post, you see the form it needs to be is consistent with these numbers. So ( a + 9b ) ( a  5b )
 2 years ago

ahoymewmew Group TitleBest ResponseYou've already chosen the best response.0
@chme thanks.
 2 years ago
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