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20 votes
20 votes
8.

Mixed Practice: Simplify the expressions and express as a polynomial in standard form:
4. -3x(9x-4)
5.x(2x^2+x) 6. -5x^2-4x+1) 7. (3x-5y+z)-(2x-4y-z)

8. Mixed Practice: Simplify the expressions and express as a polynomial in standard-example-1
User Brannerchinese
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1 Answer

13 votes
13 votes

Answer:

4 = -27x^2+12x

5 = 2x^3+x^2

6 = -5x^2+4x-1

7 = x-y+2z

Explanation:

Simple collecting like terms and distributive properties.

User Tang Chanrith
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