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karlwavfc
this question is in my maths practice paper and im kind of stuck

solve it
y=3x^2
5x +y=2

if someone could go through it, that would be great and rep available, thanks
Make y the subject in both cases...

y=3x2[br][br]y=25x[br][br]y=yso3x2=25x[br]y=3x^2 [br][br]y=2-5x[br][br]y=y so 3x^2 =2-5x[br]

Rearrange and solve for x. Use [-b+/-(b^2 - 4ac)^(1/2)]/2a if needed.

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