
IBRAHIM A. answered 03/24/14
Tutor
4.9
(12)
Educated Tutor For Excellent Grades in Various Subjects
Hi there
first ignore the number 2 as if it was there
Then try to open that bracket containing ( 2 - 3b) with the number 9
so you will multiply 2 by 9 that is 9*2 and as well as multiplying -3b by 9 that is, 9*-3b
now you have 2 + 18 -27b
solve that 2 + 18
what ever you get - 27b
that is (2+18) - 27b