4(5) or 4x5=20
20-12=8 so the answer is 8
Answer:
=72/5
Step-by-step explanation:
Combine multiplied terms into a single fraction
Multiply all terms by the same value to eliminate fraction denominators
Cancel multiplied terms that are in the denominator
Answer:
Step-by-step explanation:
a whole number such as 6 can be rewritten as 6/1
4+3j=43
-4 from both sides
3j=39
then divide both sides by 3 to isolate j
j=12
N³ - 2n² - 15n = 0
"n"
n (n² + 2n - 15) = 0
n = 0
n² + 2n - 15 = 0
Δ = (2)² - 4(1)(-15)
Δ = 4 + 60 = 64
n' = (-2+8) / 2 = 6/2 =3
n'' = (-2-8) / 2 = -10/2 = -5
Solution:
S {-5 , 0 , 3 }
