PDF chapter test TRY NOW
Use the following identities to factorize the expressions.
Example:
1) \(y^3+64\)
Let us write the above expression as \(y^3+4^3\).
Use the identity, \(a^3+b^3 = (a+b)(a^2-ab+b^2)\).
2) \(9x^2 -16y^2\)
Let us write the above expression as \((3x)^2-(4y)^2\).
Use the identity, \(a^2-b^2\) \(=\) \((a+b)(a-b)\).
\((3x)^2-(4x)^2\) \(=\) \((3x+4y)(3x-4y)\).