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Cu+ZnSO4+temperature=? If -1/2 is a zero of polynomial 2x3+x2-6x-3 find sum and product of its other zeroes? How do I build a balloon powered car that goes forwards 8 meters, then backwards exactly 4 meters without the use of a motor? Do you know the student life of Shri. Brijmohan Agarwal? Will electric tape catch on fire from sparking wires? Or is electric tape fire-proof?