The awnser would be f(x) = 2x2 -4x +4
Use distributive prpoerty
a(b+c)=ab+ac
distribute each
3k(-5k+21)=-15k^2+63k
2(2.5k+90)=5k+180
so nowe we have
-15k^2+63k+5k+180
add like terms
-15k^2+68k+180
that is the answer
Answer:
y = (8/5)x - 3
Step-by-step explanation:
Slope:
(-19-5)/(-10-5)
= -24/-15 = 8/5
y = (8/5)x + c
5 = (8/5)(5) + c
c = 5 - 8 = -3
y = (8/5)x - 3
Answer:
-2k + 6
Step-by-step explanation:
-2k -(-5) + 1 -(-5) is also +5
-2k + 5 + 1 Combine like terms
-2k + 6