Answer:
(3x+2)(3x-2) = 9x² - 4
Step-by-step explanation:
try to use the formula : (a-b)(a+b) = a² - b²
(3x+2)(3x-2) = (3x)² - (2)²
= 3²x² - 4
= 9x² - 4
Answer:
Step-by-step explanation:
(3x+2)(3x-2)
= 3x(3x) - 2(3x) + 2(3x) - 2(2)
= 9x² - 6x + 6x - 4
= 9x² - 4
