Mathematics, 17.11.2020 18:30 ooof3

Which of the following are quadratic equations? x2 + 3x = -9

9x2 = y2

7.x2 – 9=2? + – 12

(3x – 5) (3x + 5) = 0

Answers: 2

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Which of the following are quadratic equations? x2 + 3x = -9

9x2 = y2

7.x2...

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More questions: Mathematics Another questions

Which of the following are quadratic equations? x2 + 3x = -9 9x2 = y2 7.x2 – 9=2? + – 12 (3x – 5) (3x + 5) = 0

Answers

Another question on Mathematics

Which of the following are quadratic equations? x2 + 3x = -9

9x2 = y2

7.x2 – 9=2? + – 12

(3x – 5) (3x + 5) = 0