For any non-zero a and b that satisfy |ab| = ab and |a| = a
|b - 4| + |ab - b| = ?	Answers
A) ab-4	B) 2b - ab - 4	C) ab+4	D) ab - 2b + 4	E) 4-ab
|ab| = ab and |a| = -a   =&gt; b is also negative.   So   |b-4| + |ab -b|   = (b-4) + ab - b ( as ab is positive and -b is positive, so expression is totally positive)   =b-4+ab-b   =ab-4   ab-4nswer -ab-4
<result>A</result>
For any non-zero a and b that satisfy |ab| = ab and |a| = a
|b - 4| + |ab - b| = ?