7 * 7, how to omit the multiplication sign?

7 * 7, how to omit the multiplication sign?


7^2



Omit the multiply sign and write the following
7×a×b=( ) x×x×2=( ) (a+b)×2=( )
4.5×x=( ) b×3×a=( ) 3×a+2×b=( )
5×c×d=( ) a×3=( )


7×a×b=( 7ab ) x×x×2=( 2x^2 ) (a+b)×2=( 2a+2b )
4.5×x=( 4.5x ) b×3×a=( 3ab ) 3×a+2×b=( 3a+2b )
5×c×d=( 5cd ) a×3=( 3a )
^2 means square



How to write a × a omitting multiplication sign
Hurry! Hurry!


The square of a is a-178;