Question

ehat is the value of the expression when y=6?y²-5y-4

Answer 1

Answer:

2

Explanations:

The given expression is:

$y^2\text{ - 5y - 4}$

To get the value of the expression when y = 6, we are going to substitute y for 6 in the given expression:

$6^2-\text{ 5(6) - 4}$$\begin{gathered} \text{Note:} \\ 6^2\text{ = 6 }\times6=36 \\ 5(6)\text{ = 5 }\times6=\text{ 30} \end{gathered}$

The value of the expression then becomes:

36 - 30 - 4

= 6 - 4

= 2