Math, asked by kv6263606, 9 days ago

(vii) (l + m)2 - 4lm (Hint: Expand (I + m)? first)​

Answers

Answered by aniketaryan960
2

Answer:

Step-by-step explanation:

= (l + m)2 - 4lm

= 2l + 2m - 4lm                                       [Because when we multiply a number    

                                                                that is outside of the bracket..                                                                  

                                                            we have to multiply all the numbers that  

                                                                      is inside..]

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