Question

Va rog sa ma ajutati:
$b {}^{13} \times b \times b ^{21 } \times b {}^{20}$
b (la puterea 13) × b × b (la puterea 21) × b (la puterea 20)

Dau coroana!

Answer 1

b^13 * b^1 * b^21 * b^20 = b^(13+1+21+20) = b^55

Answer 2

b¹³ x b¹ x b²¹ x b²⁰ = b ⁽ ¹³ ⁺ ¹ ⁺ ²¹ ⁺ ²⁰ ⁾ = b⁵⁵