Just like performing the basic operations in real numbers, functions can also perform the four basic operations. Now, let’s try to solve the following:

example:
[tex]10 {?}^{2} { - 5}^{2} = 5 {}^{2} [/tex]

[tex]3x + 5x =[/tex]
[tex]7x - 2x[/tex]
[tex]x.x = [/tex]
[tex]2 {?}^{2} + 4 {?}^{2} = [/tex]
[tex]5x - 10 x[/tex]



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