PDF chapter test TRY NOW

1. Expand \(y^2 - 16\) by using \(a^2 - b^2\) identity.
 
Answer:
 
\(y^2 - 16 =\) (i+i)(ii)
 
(Note: Enter the numbers variable followed by the number.)
 
2. Simplify \((5x + 3)(5x + 4)\) by using \((x + a)(x + b)\) identity.
 
Answer:
 
\((5x + 3)(5x + 4) =\) iii+ii+i
 
3. Expand \((x + 4)^3\).
 
Answer:
 
\((x + 4)^3 =\) ii+iii+ii+i
 
(Note: Enter the numbers first followed by the variables.)