Calculate the average time for the tablet to dissolve in room temperature water. Record the average time in Table A. Trial 150. 00Trial 252. 00Trial 351. 00 What is the average time it took for the tablet to dissolve in room temperature water? seconds.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

d

step-by-step explanation:

i used the pitagoras theoreme