Answer:
f(-3) = 10
Step-by-step explanation:
Simply plug in x as -3 to find f(-3):
f(-3) = -6(-3) - 8
f(-3) = 18 - 8
f(-3) = 10
Hey there :)
( a + b )( a² - ab + b² )
Let us distribute ( a + b )
a ( a² ) + a ( - ab ) + a ( b² ) + b ( a² ) + b ( - ab ) + b ( b² )
a³ - a²b + ab² + a²b - ab² + b³
We can simplify further:
- a²b + a²b = 0
ab² - ab² = 0
a³ + b³
You can see in the picture I have attached that this is the
7th formula
A.you get a symmetric matrix.
you can add to a non symmetric matrix a diagonal symmetric matrix and get a symmetric one but not always and i don t know if you can get one by multiplying two non symmetric matrices.
I think the first one is C
Answer: 39
Step-by-step explanation:
(6*2)+(6*4.5)
(12)+(27)
39