Question

pls give the correct answer​

Answer 1

Answer:

Solution

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(i) 9x

2

−y

2

+4y−4

=9x

2

−(y

2

−4y+4)

=9x

2

−(y−2)

2

=(3x)

2

−(y−2)

2

=[3x+(y−2)][3x−(y−2)]

=(3x+y−2)(3x−y+2)

(ii) 4a

2

−4b

2

+4a+1

=(4a

2

+4a+1)−4b

2

=(2a+1)

2

−(2b)

2

=(2a+2b+1)(2a−2b+1)

Step-by-step explanation:

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Answer 2

Answer:

x²-y²=x²-2xy+b²

x²+y²=x²+2xy+b²

Step-by-step explanation:

hope this help u :))