Question

kdaskidasdansdnasdasdnasndasd

Answer 1

Resposta:

D)   a) $4a^4b^4c^4$

     b) $30x^3y^4z$

Explicação passo-a-passo:

a)

$\frac{20a^6b^3c^9}{5a^2b^{-1}c^5} = 4a^{6-2}b^{3-(-1)}c^{9-5} = 4a^4b^{3+1}c^4 = 4a^4b^4c^4$

b)

$5xyz \times 6x^2y^3 = 30x^{1+2}y^{1+3}z = 30x^3y^4z$