book Maths Puzzle Numerical Ability

-3x2 +x -2 =0

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book Other Question

what is the translation for temperature in degrees fahrenheit F is the same as ninth-fifths of the deegrees celsius C pluse thirty-two How many solutions does a quadratic usually have?

Find the missing value that makes the trinomial a perfect square

x^2+20x+____ & x^2-3/4x+____