Question

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

Answer 1

Answer:

See below

Step-by-step 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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