exam Maths Puzzle Numerical Ability

i need help solve 2x^2-3x-2=0 using the quadratic formula

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exam Other Question

The median age A, in years, at first marriage for women can be modeled by
A = 0.00118t^2 - 0.095t + 22.503 where t = 0 represents the year 1900 and t = 100 represents the year 200 If x to the second= x to the third, give the two possible values for x