Question

fatorise the following (i) x – 2y – x2 + 4y2
(i) a (a – 2) - b (b - 2)
(ii) 4a2 – b2 + 2a + b.
(ii) a(a – 1) - b(b - 1).​

Answer 1

Answer:

1... (x-2y). {1-(x+2y)}

2...(a-b)(a+b-2)

3...4a^2+2a-b^2-b

4...a(a-1)-b(b-1)

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