Question

a) x³x⁻⁵x⁴= b) a⁸a⁻⁸a⁻¹= c) 6⁴÷6⁵=

Answer 1

Explicação passo-a-passo:

a) $\sf x^3\cdot x^{-5}\cdot x^4=x^{3-5+4}=x^2$

b) $\sf a^8\cdot a^{-8}\cdot a^{-1}=a^{8-8-1}=a^{-1}$

c) $\sf 6^{4}\div6^{5}=6^{4-5}=6^{-1}$

Answer 2

a)x0x−5×4

Multiplique 5 e 4 para obter 20.

x_{0}x-20x0x−20

b)8a²-8a-1

c)6⁵raiz quadrada->1296