exam Maths Puzzle Numerical Ability

Factor x^2 +3x +6 over the set of complex numbers.

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exam Other Question

Graph the equations:
y = -x + 2
y = x + 2 For a polynomial of the form ax2 + bx + c = 0 to have real solutions, √(b2 � 4ac) must be a real number. Which of the following polynomials have real solutions?
a. x2 � 12x + 3 = 0