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Solve by applying the zero product property.
If there is more than one solution, separate the answers with commas.

Ask by Wyatt Robbins. in the United States
Jan 25,2025

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Mind Expander

First, we need to rearrange the equation into the standard form of a quadratic equation.
Start by moving 21 to the left side:
Now, we can factor the quadratic expression. We look for two numbers that multiply to -21 (the constant term) and add up to 4 (the coefficient of the middle term). Those two numbers are 7 and -3. Therefore, we can factor the equation as:
By the zero product property, we set each factor equal to zero:
Thus, the solutions are:

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