Question

1. select all expressions that have a negative value.

a. (18 + 12) − 40
b. 25 − 30 + 10
c. (−3)(−2)(4)
d. −6(15 − 20)
e. −14 − (−10)

Explanation:

Step1: Evaluate Option A

Calculate inside parentheses first: $18+12=30$, then subtract 40: $30-40=-10$

Step2: Evaluate Option B

Calculate left to right: $25-30=-5$, then add 10: $-5+10=5$

Step3: Evaluate Option C

Multiply step by step: $(-3)(-2)=6$, then $6\times4=24$

Step4: Evaluate Option D

Calculate inside parentheses first: $15-20=-5$, then multiply by -6: $-6\times(-5)=30$

Step5: Evaluate Option E

Rewrite subtraction of negative: $-14 + 10=-4$

Answer:

A. $(18 + 12) - 40$, E. $-14 - (-10)$