Does anyone know where the a in front of the parentheses for the LCD : a(a+5)(a-6) came from? Thank you!

asked Sep 26, 2023 136k views

2 votes

Does anyone know where the a in front of the parentheses for the LCD : a(a+5)(a-6) came from?

Thank you!

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3 votes

Answer:

See below

Explanation:

If you factor
a^2-a-30 you get
$\left(a^2+5a\right)+\left(-6a-30\right)$

=
a(a+5)-6(a+5)

=
a(a+5)(a-6)

That's where the a comes in

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