Question

multiply (x- 2y) (3x-5y) ​

Answer 1

$\maltese\LARGE\textsf{\underline{ SoLuTioN :-}}$

$\large\textsf{ }$

$\qquad\tt{:}\longrightarrow\large\textsf{( x - 2y )( 3x - 5y )}$

$\qquad\tt{:}\longrightarrow\large\textsf{x ( 3x - 5 ) - 2y (3x - 5 )}$

$\qquad\tt{:}\longrightarrow\boxed{\large\textsf\textcolor{red}{3x² - 5x - 6xy + 10y}}$

$\large\textsf{ }$

$\maltese\LARGE\textsf{\underline{ AlGeBrAiC fOrMuLaS :-}}$

$\large\textsf{ }$

$\boxed{\begin{array}{ c }\\\qquad\tt{:}\longrightarrow\large\textsf{( a + b )² = a² + b² + 2ab}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{( a - b )² = a² + b² - 2ab}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{a² - b² = ( a + b ) ( a - b )}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{a² + b² = ( a + b )² - 2ab}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{a³ + b³ = ( a + b ) ( a² - 2ab + b² )}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{a³ - b³ = ( a - b ) ( a² + ab + b² )}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ac }\\\end{array}}$