Multiply and simplify:
(
5
x
+
7
)
(
5
x
−
7
)
=
\displaystyle {\left({5}{x}+{7}\right)}{\left({5}{x}-{7}\right)}=
(
5
x
+
7
)
(
5
x
−
7
)
=
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Question 6
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\displaystyle
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