Suppose x, y, and z are different positive integers such that xy, yz, and zx are all perfect cubes. Must x, y, and z be perfect cubes? Why or why not?

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin

X-10/4 when x = –18 a 7 b –2 c –7 d 2

3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)