Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):

5 + (5 + 3) ÷ 2 x 4 - 5²
P: 5 + (8) ÷ 2 x 4 - 5²
E: 5 + 8 ÷ 2 x 4 - 25
MD: 5 + \( \frac{8}{2} \) x 4 - 25
MD: 5 + \( \frac{32}{2} \) - 25
AS: \( \frac{10}{2} \) + \( \frac{32}{2} \) - 25
AS: \( \frac{42}{2} \) - 25
AS: \( \frac{42 - 50}{2} \)
\( \frac{-8}{2} \)
-4

A number with an exponent (b^e) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b¹ = b) and a base with an exponent of 0 equals 1 ( (b⁰ = 1).

To find the average of these 4 numbers add them together then divide by 4:

\( \frac{16 + 14 + 17 + 13}{4} \) = \( \frac{60}{4} \) = 15

To simplify a radical, factor out the perfect squares:

\( \sqrt{32} \)
\( \sqrt{16 \times 2} \)
\( \sqrt{4^2 \times 2} \)
4\( \sqrt{2} \)

1