Question

1) 9x²y3 + 3x²y3 – 2x´y3
Simplify completely

Answer 1

`36x^2y-6y`

Explanation:

`9x^2y\cdot \:3+3x^2y\cdot \:3-2x'\:y\cdot \:3`,

x`=1

`9x^2y\cdot \:3+3x^2y\cdot \:3-2\cdot \:1\cdot \:y\cdot \:3`

Simplify 9x2y· 3+3x2y· 3−2· 1· y· 3: 36x2y−6y

`36x^2y-6y`