C1 Maths Help Please.

1) Find the values for Y

x²+2y=5
2x-3y = 12

2) Find the values for t

s²+2t²=6
3s - t = 5

For each question you need to get the liner equation to have the squared number in the other equation as the subject. I.e. for the first one it will be x=(12+3y)/2 Then you substitute this into the quadratic equation so you have only one unknown. Hope that helps

Btw I also just did that topic so sorry if there are any mistakes

Reply 2

Gündoğan

Make x/t the subject in your linear equations, then substitute them back into your quadratic equations...in other words; eliminate x/t

Reply 3

TVIO

What have you got so far in terms of working out/ideas? These are pretty straightforward questions, just re-arrange the equations for the variable you need.