Consider the polynomial identity (difference of squares):
(x+y)(x-y) = x² - y²
Set x =7 and y = 2 to obtain
(7+2)*(7-2) = 7² - 2²
9*5 = 49 - 4
45 = 49 - 4
This is the result required, obtained by using difference of squares.
Answer: Difference of squares.
Answer:
7 dogs
Step-by-step explanation:
f(x) = 2x + 1
f(3) = 3(2) + 1
= 7
Answer:
10 thanks by the way
Step-by-step explanation:
Have a great day