Ill give ! choose the correct simplification of the expression (12x2y3z4)(3x9y6z8). 36x18y18z32 15x18y18z32 36x11y9z12 15x11y9z12

36x¹¹y⁹z¹²

Explanation:
Before we begin, remember the following rules:
xᵃ * xᵇ = xᵃ⁺ᵇ
xᵃyᵇ * xⁿy° = xᵃ⁺ⁿ yᵇ⁺°

Now, for the given we have:
(12x²y³z⁴)(3x⁹y⁶z⁸)

Combining like terms and applying the above rules:
(12)(3) * x²⁺⁹ * y³⁺⁶ * z⁴⁺⁸
36x¹¹y⁹z¹²

Checking the options we have, we would find that this corresponds to the third option.

Hope this helps :)