# Math Help - Yr 11 maths question. quadratic

1. ## Yr 11 maths question. quadratic

2(&x)^2 - 9(&x) + 4=0

find solutions of x

sorry im new to the forums and i substituted the square root sign for &

i assume thats how you right powers as in ^2

thanks a lot

2(&x)^2 - 9(&x) + 4=0

find solutions of x

sorry im new to the forums and i substituted the square root sign for &

i assume thats how you right powers as in ^2

thanks a lot
Replace &x with n.
Then solve for n in the usual way (factorise or use quad formula)
Then replace n with &x and solve for x.

3. oh wow thats so simple.

thanks a lot =D