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OpenStudy (anonymous):
Select all of the following that are quadratic equations. a. 3x^2+ 5x- 7 = 0 b. x^3- 2x^2+ 1 = 0 c. 2x- 1 = 0 d. 5x^2+ 15x= 0 e. 6x- 1 = 4x+ 7 f. x^2- 4x= 4x+ 7
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OpenStudy (anonymous):
do you know about quadratic formula?
OpenStudy (anonymous):
nop
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