Question 13

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Jambmaths question: 

A polynomial in x whose roots are $\tfrac{4}{3}$ and $-\tfrac{3}{5}$ is

Jamb Maths Solution: 

$\begin{align}  & (x-\tfrac{4}{3})(x+\tfrac{3}{5})=0 \\ & {{x}^{2}}+\tfrac{3}{5}x-\tfrac{4}{3}x-\tfrac{12}{15}=0 \\ & {{x}^{2}}-\tfrac{11}{15}x-\tfrac{12}{15}=0 \\ & 15{{x}^{2}}-11x-12=0 \\\end{align}$

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