book Maths Puzzle Numerical Ability

factor the quadratic expression completely, and find the roots of the expression.

20x^2 + 13x + 2

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book Other Question

Four gallons of pure iodine are added to 46 gallons of 2% iodine. How much of the final solution do you have?How much iodine is contained in the mixture? What is the strength(perce please help me with this...

12p - 6.5p + 7 = -15


will you show me how you did it?