Question

Simplify this equation

Answer 1

Use the special cases of squared polynomials:

`(a+b)^2 = a^2 + 2ab + b^2`

Substitute the given equation.

`(a-2)^2 = a^2 + 2(a)(-2) + (-2)^2`

`a^2 -4a+4`

Answer 2

a^2 - 4a + 4
hope this helps!