Which equation shows the quadratic formula used correctly to solve 5x2 + 3x – 4 = 0 for x?

The equation shows the quadratic formula used correctly to solve the given quadratic equation.

Step-by-step explanation:

The given equation is

           .... (1)

If a quadratic equation is defined as

          ..... (2)

then the quadratic formula is

From equation (1) and (2), we get

Using quadratic formula we get

Therefore the equation shows the quadratic formula used correctly to solve the given quadratic equation.

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total

answer. d.289 hope that