Simplify the Expression below; z^3+7z^2 +z+z^2+2 z+3

Question

asked Jan 7, 2020 22.3k views

1 Answer

Priyesh Diukar · Answer 1 · 2020-01-12T04:43:57+0000

Answer:

z^3 + 8 z^2 + 3 z + 3

Explanation:

Simplify the following:

z^3 + 7 z^2 + z^2 + 2 z + z + 3

Grouping like terms, z^3 + 7 z^2 + z^2 + 2 z + z + 3 = z^3 + (7 z^2 + z^2) + (z + 2 z) + 3:

z^3 + (7 z^2 + z^2) + (z + 2 z) + 3

7 z^2 + z^2 = 8 z^2:

z^3 + 8 z^2 + (z + 2 z) + 3

z + 2 z = 3 z:

Answer: z^3 + 8 z^2 + 3 z + 3