It would be nice if somebody can help me with this!!!

I’m assuming 160.

Step-by-step explanation: If x = 2:

using PEMDAS

(4(2))(5(2^2)) =

(8)(5(4)) =

(8)(20) = 160

20x^3

20(2^3)=

20(8) = 160

hope this helps

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11