Expand:
(
y
2
+
4
y
−
9
)
(
y
2
+
6
y
−
2
)
=
\displaystyle {\left({y}^{{2}}+{4}{y}-{9}\right)}{\left({y}^{{2}}+{6}{y}-{2}\right)}=
(
y
2
+
4
y
−
9
)
(
y
2
+
6
y
−
2
)
=
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Question 6
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\displaystyle
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