Question

factorise
$a + a {}^{4}$
Factorise
$ab {}^{4} - a {}^{4} b$
With explanation please
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Answer 1

$a + a {}^{4} \\ a(1 + {a}^{3} ) \\ a(1 + a)(1 - a + {a}^{2} )$
$ab {}^{4} - a {}^{4} b \\ ab( {b}^{3} - {a}^{3} ) \\ ab( {b} - a)( {b}^{2} + ab + {a}^{2} )$

Answer 2

Answer:

1 a+a^4
You take a common.
= a(1+a^3)
That would be your answer. You can’t factorise it further.