if 3x^2+2@xy+2y^2+2ax-4y+1 can be resolved into 2 linear factors. Prove that @ is the root of the equation x^2+4ax+2a^2+6

Dear student,

Since @ is the root of this equation , so substitute in it.

@2+4a@+2a2+6

Now go back to the original equation and resolve it into two...

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