hutatu no kotae ha mattaku tigaimasu.

A natural reading is:

ふたつ の こたえ は まったく ちがいます。

Without the learning spaces, it is normally written:

二つの答えはまったく違います。

Pitch accent and rhythm depend on speaker and region, but that reading is the standard one to learn.

二つ is the native Japanese counting form for two things.

• 二 by itself is just the number two
• 二つ means two items / two things

So 二つの答え means two answers.

Japanese often uses counters when counting things. In this sentence, つ is the general counter for small numbers of unspecified things.

の links nouns and makes one noun describe another.

Here:

• 二つ = two things
• 答え = answer
• 二つの答え = the two answers / two answers

So の is working a bit like English of or like the way English puts one noun before another:

• 日本の車 = Japanese car / car of Japan
• 学生の本 = student’s book
• 二つの答え = two answers

は marks the topic of the sentence.

Here, the topic is 二つの答え — the two answers. The sentence is saying something about them:

• 二つの答えは = as for the two answers...
• まったく違います = they are completely different

So は sets up what the sentence is about.

Japanese sentences usually end with the main predicate, and that often comes at the end.

In this sentence, 違います is the main predicate. It expresses the idea of differ / be different.

So the structure is:

• topic: 二つの答えは
• predicate: まったく違います

That is very normal Japanese word order.

Here, まったく means completely, entirely, or totally.

So:

• まったく違います = are completely different

A useful thing to know is that まったく is also very common with negatives:

• まったく分かりません = I do not understand at all

So depending on the sentence, まったく can mean either:

• completely / totally
• not at all when used with a negative form

Yes. 違います is the polite present form.

The plain form is:

• 違う = to differ / to be different

Polite form:

• 違います

Past forms:

• 違った = was different
• 違いました = was different (polite)

Negative forms:

• 違わない = is not different / is not wrong depending on context
• 違いません = polite negative

In Japanese, 違う is a verb, not an adjective.

That is why Japanese says something closer to:

• The two answers differ completely

rather than literally using an adjective like English different.

This is very common in Japanese: sometimes an idea that is an adjective in English is expressed with a verb in Japanese.

Yes, 二つの答えがまったく違います is possible, but the nuance changes.

Very roughly:

• は = marks the topic; more neutral or contrastive depending on context
• が = marks the subject more directly; can feel more like identifying what is different

Compare:

• 二つの答えはまったく違います。
  As for the two answers, they are completely different.

• 二つの答えがまったく違います。
  It is the two answers that are completely different.

In many situations, は is the more natural choice if you are just talking about those answers as the topic.

Japanese often leaves things understood from context.

In English, we might say:

• The two answers are completely different from each other.

In Japanese, 二つの答えはまったく違います already naturally implies that the two answers differ from one another. You do not need to spell that out.

If you wanted to be more explicit, you could say something like:

• 二つの答えはお互いに違います。

But in this case, that would usually sound less natural than the original sentence.

No. Normal Japanese writing does not use spaces between words.

So the standard written sentence is:

二つの答えはまったく違います。

Spaces are often added only in textbooks, beginner materials, or dictionaries to make the structure easier to see.