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Mathematics 19 Online
OpenStudy (anonymous):

(a+5)(a-2)

OpenStudy (anonymous):

waht about it

OpenStudy (anonymous):

a^2+3a-10

OpenStudy (id21):

\[(a+5)(a-2)=a \times a +a \times (-2)+5 \times a + 5 \times (-2) =a^2-2a+5a-10=a^2+3a-10\]

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