Math, asked by janumvl, 11 months ago

Factorise:
a square -b square- 4c square+4bc

Answers

Answered by shruti2106

1

Step-by-step explanation:

a²-b²-4c²+4bc

=a²-(b²+4c²-4bc)

=a²-[(b)² + (2c)² - 2×b×2c]

=a²-(b-2c)²

=(a-b+2c)(a+b-2c)

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