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Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2

a) p 2
y
2
– 2py + 1 b) a 2
y
2
– 2aby + b2

Sagot :

Adioabiolaidn

The factorisation of the given expressions is as follows;

  • a) p²y²– 2py + 1 = (py -1)²
  • b) a²y² -2aby +b² = (ay - b)²

Factorization using identities

The given identity is;

  • a²– 2ab + b² = (a – b)²

From the given identity, we can conclude that;

In the expression (a);

  • py represents a in the identity and 1 represents b in the identity.

In the expression (b);

  • ay represents a in the identity and b represents b in the identity.

Hence, the factorised expressions are as represented above.

Read more on factorisation;

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