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flyinglikeabird?
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Solve the quadratic equation 5x2  125 = 0. Show all your steps.
 2 years ago
 2 years ago
flyinglikeabird? Group Title
Solve the quadratic equation 5x2  125 = 0. Show all your steps.
 2 years ago
 2 years ago

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flyinglikeabird? Group TitleBest ResponseYou've already chosen the best response.0
I know I do something like x^2  b = c
 2 years ago

across Group TitleBest ResponseYou've already chosen the best response.0
\[\begin{align} 5x^2125&=0\\ 5x^2&=125\\ x^2&=25\\ x&=\pm5 \end{align}\]
 2 years ago

flyinglikeabird? Group TitleBest ResponseYou've already chosen the best response.0
You just divided by 5?
 2 years ago

merchandize Group TitleBest ResponseYou've already chosen the best response.1
To solve this by factoring you first must divide the eqn by 5. Then subtract the righthand result. Now you have the diff of 2 squares you should be able to factor it from there.
 2 years ago

flyinglikeabird? Group TitleBest ResponseYou've already chosen the best response.0
Okay, factor what?
 2 years ago

merchandize Group TitleBest ResponseYou've already chosen the best response.1
(x+5)(x5)=0 i.e x=+5,x=5
 2 years ago

flyinglikeabird? Group TitleBest ResponseYou've already chosen the best response.0
Ohh right! Thank you!
 2 years ago
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