Question

18, 4 e 2
16, 5 e 3
18, 5 e 2
16, 4 e 3

Answer 1

Resposta:

16; 4; 3

Explicação passo-a-passo:

2x-3y x=5 e y=-2

2×(5) - 3×(-2)

10 - (-6)

10+ 6

16

3x² - 5x/ x + 3 x=4

3 × (4)² - 5 × 4 / 4 + 3

3 × 16 - 5 × 4 / 4 + 3

48 - 20 / 7

28 / 7

4

raiz b² - 4 a c a=2; b=5; c=2

raiz 5² - 4 × 2 × 2

raiz 25 - 4 × 4

raiz 25 - 16

raiz 9

3