12. Which of the following is a quadratic equation?
(1) x2 + 6 = 0
(2) 28-10 = 15
(3) 2...
Mathematics, 27.01.2021 17:10 aiti48
12. Which of the following is a quadratic equation?
(1) x2 + 6 = 0
(2) 28-10 = 15
(3) 2r-32 = 2
(4) r+2 =10
Answers: 1
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