in 12.) , if your mean 7x^4 etc, then all 3 terms would be different and nothing else can be done
13.)
3-4x - 15x - 6x - 1
= 2 - 24x , just add up the x terms and the constants.
12.) 7r4 + 13r2 + 9r
13.) 3 - 4x - 15x - 6x - 1
Thanks to whoever helps me :D
13.)
3-4x - 15x - 6x - 1
= 2 - 24x , just add up the x terms and the constants.
12.)
In the expression 7r^4 + 13r^2 + 9r, we have three terms. However, there are no other terms with the same variable raised to the same power. Therefore, we cannot combine any like terms in this case.
13.)
In the expression 3 - 4x - 15x - 6x - 1, we have several terms with the variable 'x'. To combine like terms, we need to group the terms with 'x' together.
First, let's reorder the terms:
3 - 4x - 15x - 6x - 1
Next, let's combine the terms with 'x':
-4x - 15x - 6x
We can simplify this by adding the coefficients of 'x':
-4x - 15x - 6x = -25x
Now, let's put it all together:
3 + (-25x) - 1
We can simplify further:
3 - 1 - 25x = 2 - 25x
So, the combined form of the expression is 2 - 25x.