A) 3(a - b) = 3*a +3*-b = 3a - 3b EQUAL
b) 2a(2 + b) = 4a + 2ab NOT EQUAL
Answer:

Step-by-step explanation:
Given

Required
Express in standard form
To do this, we simply reorder the terms of the polynomial in descending order of power.
So, we have:

68%. There is a 17% faliure rate for a computer, so if you buy 4 computers...
17 x 4 = 68%
Correct me if Im wrong!