Oxford Mathematics 2, D2, Chapter no 5, Exercise no 5A, Q no 11 to 14, New Syllabus, 7th Edition.

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Oxford Mathematics 2, D2, Chapter no 5, Quadratic Equation & Graphs, Exercise no 5A, Question no 11 to 14, New Syllabus, 7th Edition.
Solving Quadratic Equations by authorization.
O levels Mathematics.
Class 8th Mathematics.
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In question 11 part b. you multiplied it by 4 but you could divide by 10 and 100 to remove the point plz tell I'm confused

StewieGriffin