exam Maths Puzzle Numerical Ability

which number is a possible solution to this equation 2x^3-4x^2+5x-14=0.
2, 3, 5, or 0

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exam Other Question

Find the GCF after simplifying: 4i+8i^2(-23-8i)^2 The question on my homework is Find the perpendicular line thru the coordinate given

How do you graph 3x+4y=12 if the coordinate given to you is(5,-2) and the line has to be perpindicular?