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Published byElmer Davis Modified over 5 years ago

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Section 7.1 – Solving Quadratic Equations

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We already know how to solve quadratic equations. What if we can’t factor? Maybe we can use the Square Root Property.

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Square Root Property If then

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Square Root Property p. 557 Solve each equation using the Square Root Property.

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Square Root Property p. 557 Solve each equation using the Square Root Property.

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Square Root Property p. 557 Solve each equation using the Square Root Property.

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Pythagorean Theorem In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs. a b c

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Pythagorean Theorem p. 558 The lengths of the legs of a right triangle are given. Find the length of the hypotenuse. Give exact answers and decimal approximations rounded to two decimal places. 7 24 c 25

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Pythagorean Theorem p. 558 The lengths of the legs of a right triangle are given. Find the length of the hypotenuse. Give exact answers and decimal approximations rounded to two decimal places. 8 15 c 17

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