Question

a) ( x5 : x2 ) . (x7 : x4 ) me ajudem

Answer 1

.
$(x^5\div x^2)\times(x^7 \div x^4)= \\ \\ (x^{5-2})\times(x^{7-4})= \\ \\ x^3\times x^3= \\ \\ x^{3+3}=\fbox{ x^6 }$

Answer 2

Resposta:

Explicação passo-a-passo:

X 5-2 x 7-4

X³ . X³

X⁶