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Question
Factorise:
365y4z3 – 146y2z4
Sum
Solution
The coefficients are 365 and 146. Their GCF is 73.
The variables have the following powers:
- y4 and y2: the smallest power is y2,
- z3 and z4: the smallest power is z3.
Thus, the GCF is: 73y2z3
365y4z3 – 146y2z4
= 73y2z3(5y2)−73y2z3(2z)
= 73y2z3(5y2−2z)
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