Question

Expand= (3x-2)^2.
Please type the answer with steps whoever gives correct answer will get brainlist.

Answer 1

Answer:

(3x - 2 )² = 9x² - 12x + 4

Step-by-step Explanations :

Given : ( 3x - 2 )²

We know that,.

( a - b )² = a² - 2ab + b² -------- (1)

So in the given equation we have , ( 3x - 2 )²

Substituting a = 3x and b = 2 in equation (1)

We get,

( 3x - 2 )² = (3x)² - 2 × (3x)(-2) + (-2)²

= 9x² - 12x + 4

Hence after expanding we get ,.

( 3x - 2 )² = 9x² - 12x + 4