journeilee99 journeilee99

29-09-2020
Mathematics

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(2x + y)"
(10x – 4y)"
What is x and y ?

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heroofpokeman heroofpokeman

30-09-2020

Answer:

20x²+2xy-4y²

Step-by-step explanation:

(2x + y) (10x -4y)

=2x (10x-4y) +y (10x-4y)

= 20x²-8xy+10xy-4y²

=20x²+2xy-4y²

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