1.

Factorise:a)100-p^2 b) a^2-(b+c)^2​

Answer»

SOLUTION :-

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a). 100 - p^2

USING a^2 - b^2

=> 10^2 - p^2

=> (10-p)(10+p)

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b). a^2 - (b+c)^2

using a^2 - b^2

=> { a + ( b+c)} { a - (b+c)}

=> { a + b + c } { a - b - c }

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