Answer:
distributive property
Step-by-step explanation:
they distribute the 1 to the 3 and 7 to make it easier
hope this helps
Answer:
x² - 30 + 5x
Step-by-step explanation:
(x + 5)(x − 5)
=x(x − 5)+5(x − 5)
=x² - 5 + 5x - 25
=x² - 30 + 5x
It is 165 I hope this helps :)
Answer:
(Look at image)
Step-by-step explanation:
(Also look at image)