Question

Question 7. evaluate the expression

Answer 1

-3

Explanation:

Using PEMDAS :

1. Parentheses
2. Exponents
3. Multiplication
4. Division
5. Addition
6. Subtraction

Exponent (in Parentheses)

• (3³ - 6 × 8) ÷ 7
• (27 - 6 × 8) ÷ 7

Multiplication (in Parentheses)

• (27 - 6 × 8) ÷ 7
• (27 - 48) ÷ 7

Subtraction (In Parentheses)

• (27 - 48) ÷ 7
• -21 ÷ 7

Division

• -21 ÷ 7
• -3

Answer 2

`\left(3^3 - 6 \cdot 8 \right) / 7\\\\\\= (27-48)/(7)\\\\\\=-\frac{21}7\\\\\\=-3\\`