Question

factorise the following using appropriate identities (iii) X^2-Y^2/100
​

Answer 1

Step-by-step explanation:

x

2

−

100

y

2

=x

2

−

10

2

y

2

=x

2

−(

10

y

)

2

Now a

2

−b

2

=(a−b)(a+b)

x

2

−(

10

y

)

2

=(x−

10

y

)(x+

10

y

).