Question

factorisation grouping method 7 x y - 3 n
-x + 21 ny​

Answer 1

Answer:

(7y-1)(x+3n)

Step-by-step explanation:

7xy-3n-x+21ny

7xy-x+21ny-3n

x(7y-1)+3n(7y-1)

(7y-1)(x+3n)

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