Solving Quadratic Equations By Using The Quadratic Formula Worksheet With Answers
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419-5 Solving Quadratic Equations by Using the Quadratic Formula
Solve each equation by using the Quadratic Formula. Round to the nearest tenth if necessary.
2
1. x
− 2x − 15 = 0
SOLUTION:
For this equation, a = 1, b = –2, and c = –15.
The solutions are 5 and –3.
2
2. x
− 10x + 16 = 0
SOLUTION:
For this equation, a = 1, b = –10, and c = 16.
The solutions are 8 and 2.
2
3. x
− 8x = −10
SOLUTION:
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Write the equation in standard form.
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