Question

2. Considerando x = 2a³b¹5c, y = 3ab³c³ e z= -4aºb30c18, efetue as seguintes operações.
b) x+y³
c) x² + z

Answer 1

Olá!

$b)x + {y}^{3} \\ \\ (2a^{3} {b} ^{1} 5c) + {(3ab^{3} {c}^{3} )}^{3} \\ \\ ( {2a}^{3} {b} \times 5c) + {27a}^{3} {b}^{9} {c}^{9} \\ \\ ({10a}^{3} bc) + {27a}^{3} {b}^{9 } \\ \\ \\ resposta : \\ \\ {10}^{3} bc + {27a}^{3} {b}^{9} {c}^{9} \\ \\ \\ c) {x}^{2} + z \\ \\ {( {2}^{3} {b}^{1} 5c)}^{2} + ( { - 4a}^{0} b30c18) \\ \\ ( {2a}^{3} b \times 5c)^{2} + ( - 4 \times 1b \times 30c \times 18) \\ \\ {(10a^{3} bc)}^{2} + ( - 4b \times 30c \times 18) \\ \\ {( {10a}^{3} bc)}^{2} + ( - 2160bc) \\ \\ \\ resposta : \\ \\ {100a}^{6} {b}^{2} {c}^{2} - 2160bc$

Espero ter ajudado. Bons estudos!