Question: ff8. Fully factor. [4 marks] b (x' -9)+b(x] -9)-(6x] -54) Communication (6 marks) 9. Explain how you can determine, without solving, the number of real

$\f\f8. Fully factor. [4 marks] b (x'$ $\f\f8. Fully factor. [4 marks] b (x'$ $\f\f8. Fully factor. [4 marks] b (x'$

\f\f8. Fully factor. [4 marks] b (x' -9)+b(x] -9)-(6x] -54) Communication (6 marks) 9. Explain how you can determine, without solving, the number of real roots a quadratic equation has. For full marks present your answer with a graph of each case. [4 marks]

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