19. x^2+16x+64
=(x+8)^2
21. x^2-10x+25
=(x-5)^2
Answer:
Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality".
hope this helps
Answer:
the answer is 5p-6
Step-by-step explanation:
step 1: given
step 2: distributive property
step 3: addition property of equality
step 4: division property of equality
i'm pretty sure....
