Expanding a squared bracket gives [...]\text{[...]}[...].
A
The outside multiplier 333 applies to the correction.
B
For y=a(x−h)2+ky=a(x-h)^2+ky=a(x−h)2+k, the turning point is (h,k)\boxed{(h,k)}(h,k).
C
−2(x−2)2+9-2(x-2)^2+9−2(x−2)2+9
D
Expanding a squared bracket gives (x+p)2=x2+2px+p2\boxed{(x+p)^2=x^2+2px+p^2}(x+p)2=x2+2px+p2.
1.2.5 Completing the square Flashcards
Flashcards for OCR A Level Maths 1.2.5 Completing the square, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 21 cards, matched to the OCR A Level Maths (H240) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.