Question

factorize
x² -y² +6y -9​

Answer 1

Answer:

(x+y-3)(x-y-3)

Explanation:

x²-y²+6y-9

= x² - (y²-6y+9)

= x² - (y²-2*x*3+3²)

= x²- (y-3)²

$\boxed { a^{2}-2ab+b^{2}=(a-b)^{2}}$

= [x+(y-3)][x-(y-3)]

$\boxed {x^{2}-y^{2}=(x+y)\times(x-y)}$

= (x+y-3)(x-y-3)

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Answer 2

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I hope that it will help you.

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