Answer:
Zach is using the distributive property.
Step-by-step explanation:
He distributes the 5 to the numbers inside the ().
16
f ( x ) = 3x² - 2x
To find : f ( - 2 )
f ( - 2 ) = f ( x )
Here,
x = - 2
f ( - 2 ) = 3 ( - 2 )² - 2 ( - 2 )
= 3 ( 4 ) - 2*( - 2 )
= 3*4 + 4
= 12 + 4
f ( - 2 ) = 16
15/9... i believe :)
6.9-(-5)+4.1
When we subtract negatives, it is like adding positives
6.9 +(5)+4.1
11.9 + 4.1
the answer is going to 3
