Question

For which values of p does the pair of equations given below has
unique solution. : 4x + py + 8 = 0, 2x + 2y + 2 = 0

Answer 1

I hope u understand.....

Answer 2

Answer:

4/2 must not Equal to p/2 (since unique solution)

Therefore p can take all real values expect 4 Or p€[R-4]