Question

Evaluate the expression when y= -4.y²-7y+2

Answer 1

Put y = -4 into the expression below:

`y^2-7y+2`

Hence,

`\begin{gathered} y^2-7y+2=(-4)^2-7(-4)+2 \\ =16+28+2 \\ =46 \end{gathered}`

Therefore, the value of the expression when y = -4 is 46