Question

b) x2 - 4x - 5 = 0
c) X2+9x+8=0
d) x2-7x+5=0
pfvr preciso muitoo​

Answer 1

Resposta:

b) x2-4x=5

2x=5

x=5/2

c) x2+9x=-8

11x=-8

x=

d) x2-7x=-5

-5x=-5

x=0