exam Maths Puzzle Numerical Ability

QUESTION: GRAPH THE INEQUALITY

2X+3Y>6

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exam Other Question

a train leaves a station and travels east at 72km/h. three hours later a second train leaves on a parallel track and travels at 120km/h. When will the second train overtake the first train? the instructions say to factor;

2x^5 + 6x^4 - 8x^3

Oh please help i am getting so confused