Question

Select ALL the expressions that have a value of 2² – 3³ + 29.
1. (78 ÷ 3) – 24
2. 83 – 14 × 62 – 2
3. –|–6|
4. |–6|
5. 72 – 3.1 – 19 × 2.1

Answer 1

There is no expression that is the same as the value of 2² – 3³ + 29 which is = 2.

Simplification of the given expression

To simplify the expression 2² – 3³ + 29. is as follows:

2² – 3³ + 29 = 4- 9+29

= 29 -5

= 24

• (78 ÷ 3) – 24. To simplify is = 78/3=26-24 = 2 (false)

• 83 – 14 × 62 – 2. To simplify is = 69- 60 = 9 (false)

• –|–6|. To simplify is -(-6) = +6( false)

• -6( false)

• 72 – 3.1 – 19 × 2.1: To simplify is = 49.9×2.1 = 104.79 (false)

Therefore, there is no expression that is the same as the value of 2² – 3³ + 29. which is 2.

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