Question

your class mate was asked to square (2x - 3) , he answered 4x² - 9 . is his answer correct?

Answer 1

Answer:

His answer is incorrect

The correct answer is:

$4x^2-12x+9$

This is the square of (2x - 3)

Explanation:

Given (2x - 3)

The square of this is:

$\begin{gathered} (2x-3)^2 \\ =4x^2-12x+9 \end{gathered}$

His answer of 4x² - 9 is incorrect.