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11 cards from this deck
Completing the square
ax2+bx+cax^2 + bx + cax2+bx+c
(x+p)2+q(x + p)^2 + q(x+p)2+q
2, then write (x + rac{b}{2})^2
Adjust constant to match original expression
Forgetting the adjusting number
(x+4)2−11(x + 4)^2 - 11(x+4)2−11
Move constant to other side
pmpmpm solutions
c - (rac{b}{2})^2
Factorise easily
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