book Maths Puzzle Numerical Ability

is v(v-3) = v^2 + 6 a quadratic equation and if so what is the solution?

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book Other Question

what is y=-3x-1 and i have to graph it Mary runs at a rate of 5 miles per hour to her friend's house. She runs back at 10 miles per hour and spends one hour less on the trip. How far away is her friend 's house?