Question

( 3x - 2 ) ² = _____.​

Answer 1

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

So the answer is 9x² - 12x + 4

Hope this helps you.