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Quadratic Equations - Coggle Diagram
Quadratic Equations
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Equations in the form of ax² + bx + c = 0, a, b, c ∈ R, and a ≠ 0, are called quadratic equations with one unknown. The real numbers x that satisfy the equation are called the roots of the equation.
FOR EXAMPLE:
x²+x+13 is a quadratic equation,
x³+ x²+22 is a not quadratic equation
Which of the following quadratic equations Is the root given correctly? I) x²+ 5x +4 =0 (1,4)
II) x²+ 2x+ 3= 0 (1,3)
III) x²-x-30=0 (-5,3)
A) I B) II C) III D) I,II E) II,III
Complex Numbers
Complex numbers are the numbers that are expressed in the form of a+ib where, a,b are real numbers and 'i' is an imaginary number
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