Add the following polynomials, Write your answer in descending powers of x.

x4 -3x + 1, 4x2 - 2x + 8, and x3 - 9

Question

Add the following polynomials,  Write your answer in descending powers of x.

x4 -3x + 1, 4x2 - 2x + 8, and x3 - 9

anonymous · Answer

$$x ^{4}-3x+1 + 4x ^{2} -2x+8 + x ^{3}-9$$
First thing to do is collect like terms, do u know how to do that?

anonymous · Answer

sorry no

anonymous · Answer

like terms are common individual numbers which may/may not include coefficients and pronumerals, let me show you.

$$x^{4} + 2x^{4} = 3x ^{4}$$

I am able to add those two terms together because they have the same power.
Same thing applies for all other terms with powers.

If the term just had as a x in it
3x - 5x = -2x
u can minus it

same thing for numbers.