Multiply using a special product formula.
-(3x - 6)(3x + 6)

Question

Quizplus · Accepted Answer

This is a difference of squares pattern, (a+b)(a-b) = a^2 - b^2. In this case a = 3x and b = 6, so we have (3x)^2 - (6)^2 = 9x^2 - 36. Therefore the answer is 11ebb63d_1b9a_c4b4_b851_fff63894f9fb_TB8475_11. The special product formula for (a+b)(a-b) is a² - b². In this case, (3x+6) and (3x-6) are the same, except for the signs. So when multiplied, the result will be (3x)² - (6)², which is 9x² - 36. Therefore, (3x+6)(3x-6) is equal to 9x² - 36, which is answer choice B.

Multiply Using a Special Product Formula