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jeyben [28]
3 years ago
11

Question 5 Unsaved Factor the 4 term polynomial using grouping: 20xy - 4y + 35x - 7 Question 5 options:

Mathematics
1 answer:
natulia [17]3 years ago
4 0

Consider the expression 20xy - 4y + 35x - 7. Group first two terms and second two terms:

20xy - 4y + 35x - 7=(20xy - 4y) + (35x - 7).

In first brackets the common factor is 4y and in second brackets the common factor is 7.

Then

(20xy - 4y) + (35x - 7)=4y(5x-1)+7(5x-1)=(5x-1)(4y+7).

Answer: correct choice is A.

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