Question

When __________ or ______ both sides of an inequality by a negative number, the inequality symbol must be flipped. Answer choices in the attached

Answer 1

The answer is Multiplying or dividing (D)

Explanation:

∵ 3 > 2 ⇒ if multiply both sides by -2

∴ -6 > -4 ⇒ Mathematically wrong

∴ We must flipped the symbol of inequality

∴ -6 < -4

∵ -12 < -8 ⇒divide both sides by -4

∴ 3 < 2 ⇒ Mathematically wrong

∴ We must flipped the symbol of inequality

∴ 3 > 2