Answer:
A) 2x3 + 11x2 + 8x - 16.
Step-by-step explanation:
s(x).t(x) = (x + 4)( 2x2 + 3x - 4)
= x(2x2 + 3x - 4) + 4( 2x2 + 3x - 4)
= 2x3 + 3x2 - 4x + 8x2 + 12x - 16
= 2x3 + 11x2 + 8x - 16
Answer:
The percent increase in iron = 50 %
Step-by-step explanation:
Initial amount of iron per serving = 1.2 mg
After an increase the amount of iron per serving = 1.8 mg
Increase in the amount of iron per serving = 1.8 - 1.2 = 0.6 mg
Percent increase in iron is calculated as


Put the values in above formula we get
= 50 %
Therefore the percent increase in iron = 50 %
Answer:
x = -11 or 5
Step-by-step explanation:
[3(-11)+9]
[-33+9]
[-24]
24
[3(5)+9]
[15+9]
[24]
24
Answer:
Hope you understand not to sure but that's what I got