Answer:
a. (x^3+8)(x^2-4)
b. x=1 and x=1/2
Step-by-step explanation:
a. (x^3+8)(x^2-4) = x^5-4x^3+8x^2-32 [foil method: first,outside,inside,last]
b. use quadratic formula: -b +/- square root b^2-4ac / 2a
2=a; -3=b; 1=c
-(-3) + square root (-3)^2 - 4(2)(1) / 2(2)
3 + 1 / 4 = 4/4 = 1
3 - 1/4 = 2/4 = 1/2
Answer:
A) m < 7
Step-by-step explanation:
4m – 3(m + 1) – 4 < 0
Distribute the 3
4m -3m -3-4<0
m-7 <0
Add 7 to each side
m-7+7 <0+7
m<7
Answer:
By shortening
Step-by-step explanation:
1. 5x>35 /5
x>5
2. 4x<8y+12 /4
x<2y+3
That's like asking "What's the dollar amount of one half ?"
"Half" is not an amount. It's half of some amount that's been
previously described.
8.15% isn't an amount of anything.
It's 0.0815 of some amount that's already been described.