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A-Level Maths Edexcel 9MA0
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#1 Complete the square (a≠1)
Rewrite
a
x
2
+
b
x
+
c
ax^2+bx+c
a
x
2
+
b
x
+
c
as
a
(
x
+
p
)
2
+
q
a(x+p)^2+q
a
(
x
+
p
)
2
+
q
.