Solve the simultaneous equations xy=2 and y=3x+5.
x=1/3 and y=6 or x=-2 and y=-1
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This is a question from a past paper: https://prnt.sc/r6jnxc
x^3 + 2x^2 - 9x - 18 = (x^2 - a^2)(x + b) where a,b are integers. Work out the three linear factors of x^3 + 2x^2 - 9x - 18. (Note: x^3 indicates x cubed and x^2 indicates x squared).