Question

2a²b² - 5c
a=2
6=-1
C = 4
toi en prueba :(​

Answer 1

Respuesta:

$2 {a}^{2} {b}^{2} - 5c = 2 \times {2}^{2} \times {( - 1)}^{2} - 5 \times 4 = 2 \times 4 \times 1 - 5 \times 4 = 8 - 20 = - 12$