7x^4 7x^3 7x^2 -8x^3 -8a^3
2007-03-11 13:44:11 · 7 answers · asked by Andre H 1 in Science & Mathematics ➔ Mathematics
Like terms have the same base and same power(index)
e.g 2x^2 The base is x and the power(index) is 2, therefore another like term will be 5x^2, the number in front of the base is the coefficient.
If the base and the index is the same, just add /subtract the coefficient .
Like or unlike terms are separated by a plus or minus(takeaway sign)
e.g 2x^2 +5x^2 = (2+5) x^2
=7x^2
So in 7x^4 7x^3 7x^2 -8x^3 -8a^3 ( if u have written as part of an equation), can be written as
343x^9 - 8x^3 -8a^3, As it looks there are no like terms.
The terms are 343x^9 , - 8x^3 and -8a^3. None of then have the same base and power. they are unlike terms.
If you have forgotten to separate the terms by commas, then
7x^4, 7x^3, 7x^2, -8x^3, -8a^3 will have like terms,
They are 7x^3 and -8x^3 ( as they have the same base x, and the same power 3.
2007-03-11 13:59:28 · answer #1 · answered by aamna 2 · 0⤊ 0⤋
The only like terms are:
7x^3 and -8x^3 because they BOTH have the same variable x and the same exponent 3.
Guido
2007-03-11 20:54:17 · answer #2 · answered by Anonymous · 0⤊ 0⤋
7x^3 and -8x^3, both have x^3
2007-03-11 20:48:22 · answer #3 · answered by Mogli of the Jungle 2 · 0⤊ 0⤋
7x^3 and -8x^3
2007-03-11 21:20:11 · answer #4 · answered by hokieman3000 2 · 0⤊ 0⤋
7x^3 and -8x^3
2007-03-11 20:47:53 · answer #5 · answered by ironduke8159 7 · 0⤊ 0⤋
x to the same power are considered "like terms" and can be combined:
7x^3 - 8x^3 = -1x^3
Those are the only two that can be comined in this equation.
2007-03-11 20:47:10 · answer #6 · answered by Dave 6 · 0⤊ 0⤋
all are like terms except last one because need to have same variable
2007-03-11 20:47:37 · answer #7 · answered by Cilly 2 · 0⤊ 0⤋