Question 14

loading...

Prev/Next links

Jambmaths question: 

The graph above is represented by

Option A: 

$y={{x}^{3}}-4x+2$

Option B: 

$y={{x}^{3}}-3x+2$

Option C: 

$y={{x}^{3}}+2{{x}^{2}}-x-2$

Option D: 

$y={{x}^{3}}-4{{x}^{2}}+5x-2$

Jamb Maths Solution: 

$\begin{align}  & \text{The roots of equation are }(x+2),(x+1)\text{ and }(x-1) \\ & \therefore y=(x+2)(x+1)(x-1) \\ & y={{x}^{3}}+2{{x}^{2}}-x-2 \\\end{align}$

Year of Exam: