Maths P3 9709 M/J 2010 (1st variant) Qn1

[gentleman]

Finding Modulus Question
I use the method of squaring both the sides, so when i did, i reached till the step:

-3x^2 + 22ax - 7a^2 > 0

its a quadratic eqn but how to to solve it with (a) ?? :unknown:

 

[ahmed t]

juast solve it with a
and u will get ur anser with a

 

[gentleman]

i cant apply the formula of quadratic equations!!

 

[gentleman]

okkay.... i got it :Yahoo!: