Question

What is (4×-5)^2 in polynomial form

Answer 1

`4x^2-20x+25`

Explanation:

We start with this expression.

`(4x - 5)^2`

When an expression inside parentheses are squared, we have to take two of the expression and multiply them together. To do this, we need to multiply each part of one expression and multiply it with every part in the other expression.

This means that
`(4x - 5) (4x - 5)` would become...

`(4x)(4x) = 4x^2\\(-5)(4x) = -20x\\(-5) (-5) = 25`

Now, we simply need to put all of the terms into one expression.

`4x^2-20x+25`