Question

Se a+b = 4 e x+y =6, determine o valor numérico de ax + bx + by + ay:
*com cálculos*

a) 16
b) 20
c) 24
d) 28​

Answer 1

Resposta:

$\boxed{\mathtt{C}}$

Explicação passo a passo:

$\\ \displaystyle \mathtt{ax + bx + by + ay =} \\\\ \mathtt{x(a + b) + y(b + a) =} \\\\ \mathtt{(a + b)x + (a + b)y =} \\\\ \mathtt{(a + b) \cdot (x + y) =} \\\\ \mathtt{4 \cdot 6 =} \\\\ \boxed{\boxed{\mathtt{24}}}$