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Question
Factorise the expression.
5y2 − 20y − 8z + 2yz
Sum
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Solution
5y2 − 20y − 8z + 2yz
= 5y2 − 20y + 2yz − 8z
= 5y(y − 4) + 2z(y − 4)
= (y − 4) (5y + 2z)
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