exam Maths Puzzle Numerical Ability

3x+4=2x-3

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exam Other Question

if f(x)=x square+2x+1 and g(x)=3(x=1)square then what is f(x) +g(x) A quadrilateral with vertices at A(0,0), B(2,4), C(8,5) and D(6,1).
What is the area of ABCD? Please help. Thanks.