Test of Mathematics for University Admission 2020 – Paper 1 worked answers

Test of Mathematics for University Admission, 2020 Paper 1 Solutions, Question 2, We can use the factor theorem here. If we write f(x) = 2x3+px2+q, then the question tells us that f(1 2, ) = 0 and f(2) = 0. Substituting these in gives, 1 4+, 1 4, p+ q= 0 16 + 4p+ q= 0 We can subtract the rst equation from the second to cancel the qs, giving, ................
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