To find f(-7), just plug -7 in for all x
2(-7) + 8
-14 + 8
-6 is the answer!
Answer: multply
Step-by-step explanation:
The answer is 1351 I know this because I did all the math
union=( -2,-1,0,1,2,5,7,8) intersection= -1,1
Answer: (m-21)(m+1)
Step-by-step explanation:
To factor this trinomial, find two numbers that multiply to -21 and add to -20:
(-21)(1)=-21
-21+1=-20
They are -21 and 1.
Add -21 and 1 to m to get both factors:
(m+(-21)) and (m+1)
(m-21) and (m+1)
Multiply them to get the answer:
(m-21)(m+1)
