Question

a) x2 = 25
c) x²+x-6=0
e) x2 + 3x - 10 = 0

Answer 1

Respuesta:

a) x = -12,5

b) x = 1,5

c) x = 2

Explicación paso a paso:

x2 = 25

x = 25 ÷ 2

x = 12,5

x²+x-6=0

x² + x = -6

2x² = -6

x² = -6 ÷ 2

2x = -3

x = -3 ÷ 2

x = −1,5

x2 + 3x - 10 = 0

5x = 10

x = 10 ÷ 5

x = 2