Solve the following quadratic equation by factoring out the greatest common factor (GCF): 2x2−14x=0

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1 answer

To solve the quadratic equation \( 2x^2 - 14x = 0 \) by factoring out the greatest common factor (GCF), we first identify the GCF of the terms in the equation.

  1. The GCF of \( 2x^2 \) and \( -14x \) is \( 2x \).

  2. We factor out the GCF \( 2x \):

    \[ 2x(x - 7) = 0 \]

  3. Now we can set each factor equal to zero:

    \[ 2x = 0 \quad \text{or} \quad x - 7 = 0 \]

  4. Solving each equation gives:

    • From \( 2x = 0 \): \[ x = 0 \]

    • From \( x - 7 = 0 \): \[ x = 7 \]

  5. Therefore, the solutions to the equation \( 2x^2 - 14x = 0 \) are:

\[ x = 0 \quad \text{and} \quad x = 7 \]