Question

4. Evaluate: 20 - (5)² x 2 = Working out:​

Answer 1

-30

Explanation:

focus on 5² · 2.

⇒ 5² = 5·5.

⇒ 5·5 = 25.

• So now, you have 25 · 2, which is 50.

• Plug in the rest of the equation, "20 -"
• 20 - 50 = -30.

So, your answer is -30.