book Maths Puzzle Numerical Ability

(3y+2)(y+3)=y+14

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book Other Question

the line 2x+3y=1 intersects the curve x(x+y)=10 at A and B.Calculate the coordinates of A and of B. Find values of c so that the equation will have two solutions, one solution, and no real solution.

x^2+4x+c=0