PHP programming is based on operators and operands. If you are already learned operators in C language, you will understand easily. You can use mathematics formula (a+b)^{2 } in PHP language. First of all, you need to learn about PHP data types.

Think about the variables in mathematics formula (a+b)^{2} There is two variable in this formula a and b.

How to open the mathematics formula (a+b)^{2 }–

(a+b)^{2}=a^{2}+b^{2}+2ab

How can write the line mathematics line a^{2}+b^{2}+2ab

a^{2}+b^{2}+2ab=a*a+b*b+2*a*b

if a=2 and b=4

then,

a^{2}+b^{2}+^{2}ab=2*2+4*4+2*2*4

= 4+16+16

=36

You can use this mathematics logic in PHP programming

Asterisk sign (*) is used for multiplication in computer programming languages.

We declare the variables in PHP like this –

$a;

$b;

Use the above mathematics login –

a*a+b*b+2*a*b

Let’s create a program for mathematics formula (a+b)^{2 }in PHP language –

<?php

//change values according your need

$a=5;

$b=6;

echo "(a+b)<sup>2</sup>=a<sup>2</sup>+b<sup>2</sup>+2ab";

$result=($a*$a+$b*$b+2*$a*$b);

echo "=".$result;

?>

You will get the result as output –

(a+b)^{2}=a^{2}+b^{2}+2ab=36

You can change variables (a,b) values according to your needs.