Hi,

2x^2 - 7x = 15

2x^2 - 7x -15 = 0

factoring

(2x +  ?)(x  - ?)  will need to be the format of the factoring

(2x +3)(x -5) = 0  works as 3x - 10x = -7x

(2x +3)=0

x = -3/2

(x -5)=0

x = 5 

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