Solving Quadratics by Square Roots JW

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What is the square root of a number?

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The square root of a number x is a value y such that y² = x. For example, the square root of 9 is 3, since 3² = 9.

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How do you solve a quadratic equation by taking square roots?

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What does the symbol ± mean in mathematics?

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Front

What is the importance of the square root in solving quadratics?

Back

The square root allows us to find the values of x that satisfy the equation, especially when the equation is in the form of a perfect square.

Front

What is a perfect square trinomial?

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