Question

factorise...a^4 b^4 -c^4 and abc-ab-c+1​

Answer 1

Answer:

hey mate

see the attachment

hope it helps you

Answer 2

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$\large\mathcal\red{solution}$

(1)

a^4b^4-c^4

=>(a^2b^2)^2-(c^2)^2

=>[a^2b^2+c^2][a^2b^2-c^2]

=>>[a^2b^2+c^2][ab-c][ab+c]

(2)

abc-ab-c+1

=>ab(c-1)-1(c-1)

=>(c-1)(ab-1)

$\underline{\large\mathcal\red{hope\: this \: helps \:you......}}$