Question

What are the zeros of the function y = 2x2 +5x+2?

Answer 1

Given: A function y,

`y=2x^2+5x+2`

Required: To find the zeroes of the given function.

Explanation: For finding the zeroes of the function put y=0 i.e.,

`\begin{gathered} 2x^2+5x+2=0 \\ 2x^2+4x+x+2=0 \\ 2x(x+2)+1(x+2)=0 \\ (2x+1)(x+2)=0 \end{gathered}`

which gives the value of x as

`\begin{gathered} x=-(1)/(2)\text{ and} \\ x=-2 \end{gathered}`

Final Answer: Option C is correct.