exam Maths Puzzle Numerical Ability

Factor 5x^2 - 13 - 6

(5x +2)(x - 3) is this answer correct

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exam Other Question

I need to know if this is a real or apparent argument.

A: I saw Bob with Mary last night.
B: You saw Frank, Bob's identical twin, with Marsha last night.

Also, I need to a rocket is fired upward with an inital speed of 1960 m/s. after how many minutes does it hit the ground?