Eduprobe
Question:
If the equations x² + bx - 1 = 0 and x² + x + b = 0 have a common root different from -1, then |b| is equal to:
2
√2
√3
3
Solution:
x2+bx=0. (1)andx2+x+b=0(2)
2
√2
√3
3
x2+bx=0. (1)andx2+x+b=0(2)