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(a) Factorize a^(2) - (b -8) a - 8b...

(a) Factorize `a^(2) - (b -8) a - 8b`

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`rArr a^(2) - (b -8) a - 8b`
`- a^(2) - ab + 8a - 8b`
`= a(a -b) + 8 (a -b)`
`= (a +8) (a- b)`
`:. A^(2) - (b -8) a - 8b = (a + 8) (a -b)`
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