exam Maths Puzzle Numerical Ability

Solve the system by substitution.
x � 5y = 2
2x + 3y = 17

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exam Other Question

2 = -(4l - 2) Let f(x)=x^3-8x^2+17x-9. Use the factor theorem to find other solution to f(x)-f(1)=0, besides x=1. my answer is 2,5 is that riht. thanks for checking for me.