Question

26. a2 - b2 - 4ac + 4c?​

Answer 1

Step-by-step explanation:

8th

Maths

Factorisation

Factorisation

Factorise : a2 - b2 - 4ac ...

MATHS

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Asked on August 12, 2020 by

Ashish Thapa

Factorise : a

2

−b

2

−4ac+4c

2

MEDIUM

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ANSWER

Given : a

2

−b

2

−4ac+4c

2

We can write it as

a

2

−b

2

−4ac+4c

2

=a

2

−4ac+4c

2

−b

2

So we get

a

2

−b

2

−4ac+4c

2

=a

2

−2×a×2x+2c

2

−b

2

a

2

−b

2

−4ac+4c

2

=(a−2c)

2

−b

2

Based on the equation a

2

−b

2

=(a+b)(a−b)

We get,

a

2

−b

2

−4ac+4c

2

=(a−2c+b)(a−2c−b)