Solve the quadratic equation 5x2+75x=0 by factoring out the GCF.(1 point)

Responses

The solutions are x=0 and x=5.
The solutions are x equals 0 and x equals 5 .

The solutions are x=0 and x=15.
The solutions are x equals 0 and x equals 15 .

The solutions are x=−15 and x=−5.
The solutions are x equals negative 15 and x equals negative 5 .

The solutions are x=−15 and x=0.

1 answer

To solve the quadratic equation \( 5x^2 + 75x = 0 \) by factoring out the greatest common factor (GCF), we first identify the GCF, which is \( 5x \).

We can factor the equation as follows:

\[ 5x(x + 15) = 0 \]

Now, we set each factor equal to zero:

  1. \( 5x = 0 \) which gives \( x = 0 \)
  2. \( x + 15 = 0 \) which gives \( x = -15 \)

Thus, the solutions to the equation are \( x = 0 \) and \( x = -15 \).

The correct response is:

The solutions are \( x = -15 \) and \( x = 0 \).