Unlike terms.
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The denominators need to be the same for subtraction. Find the Least Common Denominator for both items and then subtract.
A trinomial is a polynomial. All trinomials are polynomials but the opposite is not true. a trinomial= three unlike terms. a polynomial= "many" unlike terms.
You can only add or subtract like terms. So, you subtract 9x from 2x, which gives you -7x. Then subtract -9 from 3 to get -6. And you are left with -7x -6.
You can add and subtract coefficients when they occur in like terms, which means they have the same variable. 2x + 3x = 5x (This addition can take place because all of the variables are x, and are therefore like terms.) and 5y - 2y = 3y (This subtraction can take place because all of the variables are y, and are therefore like terms.) However, if the variables differ, they are unlike terms, and you cannot add or subtract the coefficients. For example: 2a + 3b cannot be added because a and b are different variables, and therefore unlike terms. 3c - 2d cannot occur because c and d are different variables, and therefore unlike terms..
no, to add and subtract like and unlike fractions the denominator has to be the same,
Unlike terms.
Unlike terms are terms in an equation that are different. These terms cannot be combined. Like terms, however, can be combined.
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first find a common denominator then subtract the top numbers
You would have to convert the units to be alike, then you would be able to add and subtract them.
To add and subtract unlike fractions.
what's 8+15=
When you want to add or subtract unlike fractions.
Unlike terms.
just change the fration with the smallest denominator and add or subtract the way you always do.