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Which of the following is quadratic equation? (a) x^2-79=x^2+9x+1 (b) 12x^2-7=0 (c) 3x^2+11x+14=x(3x+5x) (d) -x^2+11x-18=0​

Which of the following is quadratic equation? (a) x^2-79=x^2+9x+1 (b) 12x^2-7=0 (c) 3x^2+11x+14=x(3x+5x) (d) -x^2+11x-18=0​
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Which of the following is quadratic equation?

(a) x^2-79=x^2+9x+1
(b) 12x^2-7=0
(c) 3x^2+11x+14=x(3x+5x)
(d) -x^2+11x-18=0​

asked
User Caroline Orr
by
7.7k points

1 Answer

4 votes

Answer:

a c d

Explanation:

a c d are quadratic equation expect "b"

answered
User Sofie
by
7.7k points
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