exam Maths Puzzle Numerical Ability

PLEASE HELP ME WITH THIS PROBLEM:
Let f(x)=x^3-8x^2+17x-9. Use the factor theorem to find other solutions to f(x)-f(1)=0, besides x=1.

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exam Other Question

Solve for x:
8(^2x)+8^x-12=0 1.Find two consective odd integers whose sum is 116?
2.Find two consective even integers whose sum is 126?
3.Find four consective odd integers whose sum is 8?
4.Find three consective even integers whose sum is 396?