The document is a math exam for grade 9 students containing 6 questions. Question 1 involves solving quadratic equations. Question 2 involves graphing a parabola and line and finding their intersection points. Question 3 proves a quadratic equation has solutions for all values of m, and finds the sum and product of the solutions in terms of m. Question 4 is a word problem about purchasing sanitizer and masks with 500,000 VND. Question 5 calculates the number of revolutions of two tractor wheels of different diameters after one wheel turns 20 revolutions. Question 6 proves properties of tangents to a circle and that two line segments formed are equal in length to the radius squared.