Question

Find the value of the expression a? – b2 for a = 2 and b=1

Answer 1

Answer:
`a^2-b^2=3`

Explanation:

We need to find the value of the below expression i.e.

`a^2-b^2` when a = 2 and b = 1.

So,

Put a = 2 and b = 1 in the above expression. So,

`a^2-b^2=(2)^2-1^2\\\\=4-1\\\\=3`

Hence, the value of the expression is equal to 3.