Respuesta :

Rusven

Answer:

4/5 = x

0.8 = x

Step-by-step explanation:

2^2 - 5x = 0

first, we must solve for exponents, as per PEMDAS.

4 - 5x = 0

4 = 5x

4/5 = x

or x = 0.8

Answer:

x = 0

x = -5/2

Step-by-step explanation:

2x squared + 5 = 0

x (2x + 5) = 0

therefore...

x = 0

and

2x + 5 = 0

2x = - 5

x = -5/2