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Mathematics 20 Online
OpenStudy (anonymous):

how many terms are in this expression 4x+y-3

Parth (parthkohli):

How many + or - signs do you see in the expression?

OpenStudy (anonymous):

i see one + and i see one -

Parth (parthkohli):

Hmm, each term is separated by a + or - sign. Do you get it?

OpenStudy (anonymous):

yes

Parth (parthkohli):

So, if we have an expression like \(ax^2 + bx - c\), we see that we have three different terms separated by a '+' or '-' sign.

Parth (parthkohli):

What do you get here?

OpenStudy (anonymous):

ok im confussed now

Parth (parthkohli):

That was an example that I had given above. No need to get confuzzled.

OpenStudy (anonymous):

ok

Parth (parthkohli):

So, how many terms are in the question?

OpenStudy (anonymous):

2

Parth (parthkohli):

Okay, I'd give you an easy way.

Parth (parthkohli):

Let's think of a plus or minus sign as a wall, okay? We have three different persons. Let's call them as A,B,C. Here they are standing together: ABC Now we get two walls(plus/minus signs) to divide them. A | B | C

Parth (parthkohli):

See how there are only two plus or minus signs but three persons?

OpenStudy (anonymous):

ok

Parth (parthkohli):

So there are 3 terms in here. Got it?

OpenStudy (anonymous):

yes i understand now

Parth (parthkohli):

Nice! :)

OpenStudy (anonymous):

ok thank you

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