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
Do not answer unnecessarily Please answer This fast​​

Answer 1

Answer:

2 .(x+1)(x-2) is a linear equation