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Question
Factorise the following:
5a – b + x(b – 5a)
Sum
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Solution
5a – b + x · (b – 5a)
Factor out the negative sign from the expression
– (b – 5a) + x · (b – 5a)
Factor out – (b – 5a) from the expression
– (b – 5a) · (1 – x)
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