Step-by-step explanation:
1. 2x²(3x-2)=0 2. (x+7)(x-7)=0 3. 2x²+8x-3x=7
6x-4=O x²+7x-7x-49=0 2x²-6x-7=0
a=6,b=-4,c=0 x²-0-49=0 ------------------
a=1,b=0,c=-49. 2
x²-3x-7/2=0
a=1,b=-3,c=-7/2
5.(x+7)2x=0
2x²+7/2
------------
2
x²+7=0
a=1,b=7,c=0
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Answers & Comments
Step-by-step explanation:
1. 2x²(3x-2)=0 2. (x+7)(x-7)=0 3. 2x²+8x-3x=7
6x-4=O x²+7x-7x-49=0 2x²-6x-7=0
a=6,b=-4,c=0 x²-0-49=0 ------------------
a=1,b=0,c=-49. 2
x²-3x-7/2=0
a=1,b=-3,c=-7/2
5.(x+7)2x=0
2x²+7/2
------------
2
x²+7=0
a=1,b=7,c=0