Question
Add the polynomials.$$\left(15 x^{4}+10 x^{3}\right)+\left(-6 x^{4}+9 x^{3}\right)$$
Step 1
This means we put the terms with the same exponent together. So, we have $15x^{4}$ and $-6x^{4}$ together, and $10x^{3}$ and $9x^{3}$ together. This gives us: $$(15x^{4}-6x^{4})+(10x^{3}+9x^{3})$$ Show more…
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