PDF chapter test TRY NOW
Factorise the following using appropriate identities:
(i) 9x^2+ 6xy + y^2=
(ii) 4y^2– 4y + 1=
(iii) x^2-\frac{y^2}{100}=
Answer variants:
3x^2+y^2
(2y+1)^2
(2y-1)^2
(3x+y)^2
(x+\frac{y}{10})(x-\frac{y}{10})
(3x+2y)^2
(x+\frac{y}{50})(x-\frac{y}{50})
(x+\frac{y}{2})(x-\frac{y}{2})
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