Evaluate the exprssion for -5a2;a=-2, and explain how its done
Given the expression:
We need to find the value of the expression when `a= -2`
Then, we will plug in `a= -2` into the expression.
`==gt -5a^2 = -5(-2)^2`
Now we will simplify and find the value.
`==gt -5a^2 = -5(4) = -20`
Then, the value of the expression -5a`^2` when a= -2 is -20.