Given:
The expression is
[tex]4y^2+y-45[/tex]
To find:
The value of the given expression when y=-5.
Solution:
We have,
[tex]4y^2+y-45[/tex]
Putting y=-5, we get
[tex]4(-5)^2+(-5)-45[/tex]
[tex]=4(25)-5-45[/tex]
[tex]=100-50[/tex]
[tex]=50[/tex]
Therefore, the value of the given expression is 50 when y=-5.
