Question

Which of the following are linear equation
1 .. 3x(x-2)=3x^2+2x-7
2.. (x+1) (x-2)=10
3.. x (x+1) = -2 x^2 + 7x+2
4.. 2x^2 + 7x -3 =2 x (x+1)
Please Answer this questions
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Answer 1

Step-by-step explanation:

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