Edexcel Mathematics Sample paper · Paper 2 · Question 6 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

Sample paper · Paper 2 · Question 6 · 6 marks

6. Complete the table below. The first one has been done for you. For each statement you must state if it is always true, sometimes true or never true, giving a reason in each case. Statement Always True Sometimes True Never True Reason The quadratic equation ax2 + bx + c = 0, (a ¹ 0) has 2 real roots.  It only has 2 real roots when b2 – 4ac > 0. When b2 – 4ac = 0 it has 1 real root and when b2 – 4ac b then x b a > (2) (iii) The difference between consecutive square numbers is odd. (2) (Total for Question 6 is 6 marks)

Lesson: Laws of Indices