Answer:
y=x²+8x+20
Step-by-step explanation:
y=(x+4)^2+4
y=(x+4)² + 4
y=(x+4)(x+4)+4
Expanding the bracket
y=(x²+4x+4x+16)+4
y=x²+8x+16+4
y=x²+8x+20
Answer:
19y+21
Step-by-step explanation:

Answer:
-1/2d + f
Step-by-step explanation:
cmon fam I know you know how to do this just find the least common denominator and subtract like terms (numbers with the same variable) and then simplify the fractions
Answer:
I did the first one
Step-by-step explanation:
Hope I did it right
Answer:
A ( SAS )
Step-by-step explanation: