Atul8088 Atul8088

30-01-2021
Mathematics

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Select all the following that are quadratic equation.
( ) 5x^2+15x=0
( ) 6x-1=4x+7
( )x^2-4x=4x+7
( ) 2x-1=0
( ) 3x^2+5x-7=0
( ) x^3-2x^2+1=0

right answers only please do not waste my time cause 20 points are quite good

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30-01-2021

a) d) and f) are quadratic equations.

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