I can't do this Simutaneous equation

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The discussion revolves around solving a simultaneous equation involving both linear and quadratic terms: 1.1 + 0 = 0.11x + 0.3y and 5.5 + 0 = 0.55x^2 + 0.15y^2. The original poster expresses confusion over how to handle the quadratic components and requests a step-by-step solution rather than hints. Participants confirm their ability to solve quadratic equations and suggest equating the two expressions, but the poster remains uncertain about the process. The conversation highlights the challenge of transitioning from high school mathematics to more complex problems encountered in physics. Ultimately, the poster seeks clear guidance to resolve the simultaneous equations effectively.
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1.1 + 0 = 0.11 x + 0.3y
5.5 + 0 = 0.55x^2 + .15y^2

it's got squares and I'm confused on what to do with them
 
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Do you know how to solve quadratic equation?
 
Borek said:
Do you know how to solve quadratic equation?

of course i do!

-b +- sqrt((b^2-4ac)/2a)

can you please just show me how to solve it, instead of giving hints to solve it,
i'm good at maths, this is just a thing i came up from my physics question and no one's helping and i needed to sort out the maths
https://www.physicsforums.com/showthread.php?t=305051"
and i can't do it, i'll be able to once you show me how and the awnser please XD
 
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Do you know how to solve a linear equation? :biggrin:
 
epenguin said:
Do you know how to solve a linear equation? :biggrin:

look it's really early and this is a physics question that've summed down into a simutaneous equation, i haven't done simutaneous equations since high school lol...

but if you're trying to say make it equal each other i.e

1.1 - 0.11x - 0.3y = 5.5 - .55x^2 - .15y^2

i still have no idea how to solve it,

i'm pretty sure it's a simutaneous equation and would appreciate if someone could show me how to solve it lololololol

thanks, 2am now
 

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