Question

Oí

A = 3x² + 4xy + 5z
Calcular A para :
x = 3
y = 2
z = 9
​

Answer 1

Oie, Td Bom?!

$A = 3x {}^{2} + 4xy + 5z$

$A = 3 \: . \: 3 {}^{2} + 4 \: . \: 3 \: . \: 2 + 5 \: . \: 9$

$A = 3 \: . \: 9 + 4 \: . \: 3 \: . \: 2 + 5 \: . \: 9$

$A = 27 + 24 + 45$

$A = 51 + 45$

$A = 96$

Att. Makaveli1996