Question

3.
What is the value of the expression below when a = 3 and b = 5?
8a^2– 6b + 10

Answer 1

Answer: 52

Explanation:

We can plug in the values for a and b.

= 8*3^2 - 6*5 + 10

= 72 - 30 + 10

= 42 + 10

= 52

Answer 2

52

Explanation:

Start by substituting the given values into the expression:

`8a^2-6b+10\\8(3^2)-6(5)+10\\\text{Solve the expression}\\8(9)-30+10\\72-30+10\\42+10\\52`

Remember Order of Operations:

Parentheses

Exponents

Multiplication/Division (Whichever comes first)
Addition/Subtraction (Whichever comes first)