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Bubblez33
Group Title
Solving quadratics by factoring, solve equaton
20x^2+14=27x
 2 years ago
 2 years ago
Bubblez33 Group Title
Solving quadratics by factoring, solve equaton 20x^2+14=27x
 2 years ago
 2 years ago

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gaara438125 Group TitleBest ResponseYou've already chosen the best response.1
first add 27x to each side 20x^2 +27x + 14 = 0
 2 years ago

Bubblez33 Group TitleBest ResponseYou've already chosen the best response.0
7x^2+1=0
 2 years ago

gaara438125 Group TitleBest ResponseYou've already chosen the best response.1
oh no, you can't subtract 20x^2 and 27x one is x to the second power
 2 years ago

Bubblez33 Group TitleBest ResponseYou've already chosen the best response.0
20x^213x=0
 2 years ago

gaara438125 Group TitleBest ResponseYou've already chosen the best response.1
it's 20x^2 + 27x + 14 = 0 the 27 has a variable of x which we don't know what is so we can't add or subtract with it unless another number has the same variable
 2 years ago

Bubblez33 Group TitleBest ResponseYou've already chosen the best response.0
this algbra is confusing
 2 years ago

gaara438125 Group TitleBest ResponseYou've already chosen the best response.1
ok, so if your adding or subtracting with a variable you need to have the same variable, but if your multiply or dividing it doesn't matter.
 2 years ago

Bubblez33 Group TitleBest ResponseYou've already chosen the best response.0
Thanks for ur help
 2 years ago

gaara438125 Group TitleBest ResponseYou've already chosen the best response.1
ok well we have 20x^2 +27x + 14 = 0 and ima pass it to @JakeV8 mainly because i forget this part, and i need sleep lol
 2 years ago

Bubblez33 Group TitleBest ResponseYou've already chosen the best response.0
ok, thanks
 2 years ago

Bubblez33 Group TitleBest ResponseYou've already chosen the best response.0
ok Jake from here i need to find the smaller value & the larger value
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.0
Sorry, I got kicked off the site and lost everything I had typed. This doesn't factor into something easy with integer values... 20x^2 +27x + 14 = 0 you can divide it all through by 20 to get: x^2  (27/20)x + (14/20) = 0 But in my opinion, that's not much better. The solutions are x = 8/20 and x = 35/20 which both reduce to x = 2/5 and x = 7/4 that means you could have factored it as: (x + 2/5)(x  7/4) = 0 If you can see how to easily get from the original quadratic equation to this factored form, then great. Personally, it doesn't seem easy or obvious to me, and if the problem hadn't stated to solve by factoring, I would have used the quadratic formula to get the solutions for x.
 2 years ago
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