Question

a) x²=49 n b)x² = 100 z c) 3x = -12 z d) 5x = 20 Q e) 4x = -4 n f) 5x= 8 Q​

Answer 1

Resposta:

• a) x²=49

x = ±$\sqrt{49}$

x = ±7

• b) x² = 100

x = ±$\sqrt{100}$

x = ±10

• c) 3x = -12

x = -12/3

x = -4

• d) 5x = 20

x = 20/5

x = 4

• e) 4x = -4

x = -4/4

x = -1

• f) 5x = 8

x = 8/5