0.87
Step-by-step explanation:
Answer:
hope this helps.............
Answer: 0.6
Why: 1/3 * 1/5= 0.066
0.066+8/15= 0.6
Hope this Helps :D
Answer:
x^3+5x^2+16x+80
Step-by-step explanation:
You know that you can write your polynom this way : (x-r1)(x-r2)(x-r3) with r1,r2 and r3 the roots so you get :
(x+5)(x+4i)(x-4i)
Simplify (x+4i)(x-4i) with the formula (a-b)(a+b)=a²-b²
so you have (x^2+16)=(x+4i)(x-4i)
Your polynom looks like this :
(x^2+16)(x+5) just expand it
and you get x^3+5x^2+16x+80
4x+6=12
4x=12-6
4x=6
4x/4=6/4
X=1.5
