Question

A^2 - b^4 Evaluate is a= -5 and b= 2

Answer 1

21

Explanations:

Given the expression

`a^2-b^4`

We are to find the resulting value given that a = -5 and b = 2

`\begin{gathered} =(-5)^2-(2)^2 \\ =25-4 \\ =21 \end{gathered}`

Hence the value of the expression if a = -5 and b = 2 is 21