what is the difference between に and には

[gofai]

Hello everyone, I get confused in a question
There is a example in my janpanese book:

こんな数学問題は難しすぎるので、私には解けません。

My question is if I can change には to は?

ie. こんな数学問題は難しすぎるので、私は解けません。

also, Is there any difference between 2 sentence?

Thank you very much, perhaps both of my Japanese and English is not good :p

[ポール]

Hello everyone, I get confused in a question
There is a example in my janpanese book:
こんな数学問題は難しすぎるので、私には解けません。
My question is if I can change には to は?
ie. こんな数学問題は難しすぎるので、私は解けません。
also, Is there any difference between 2 sentence?

Yes you can use には or は but that should probably not be taken as a general rule.

[undrentide]

Hello everyone, I get confused in a question
There is a example in my janpanese book:

こんな数学問題は難しすぎるので、私には解けません。

My question is if I can change には to は?

ie. こんな数学問題は難しすぎるので、私は解けません。

also, Is there any difference between 2 sentence?

Thank you very much, perhaps both of my Japanese and English is not good :p

は often suggest there's alternative/option/something or someone else.
私は解けません is a generic statement, "I cannot solve it" while
私には解けません is more specific about myself - "I cannot solve it (though others might be able to/though more advanced students can)" for instance.

[Harvey]

There is another example of this 「には」double 助詞 with 「に」in this Japanese advertisement.

http://www.japannewbie.com/japanese_ads/2007/01/19/pretty-boy-shave/

Hope it helps!

[gofai]

Thank you very much! I can understand it now.