Question

factorise each of the following polynomials using ( a + b)² = a² + 2ab + b² and ( a - b)² = a² - 2ab + b².

a) x² + 6xy + 9y²

b) ( 3x - 5y)² + 2 ( 3x - 5y) ( 2y - x) + ( 2y - x)²

c) ( a + b )² - 4ab

d) 25p² - 50pq + 25q² ​

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Answer 1

Step-by-step explanation:

a)x^2+2(3)(3y)+3^2

=(x+3)^2