exam
Maths Puzzle
Numerical Ability
which is an equation of the axis of symmetry of the grapd y=x^2-4x+1?
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exam Other Question
Polynomials
p(x)+4 q(x)If P9x)=3x^5+70x^3-67x^2+3 and q(x)=3x^3+56x^2-19
two times a number plus 1 is 21