Answer:
the answer is C
give the comments brainlest
Step-by-step explanation:
Answer:
25x^2 -1
Step-by-step explanation:
If you multiply parentheses:
(5x*5x) + (5x*-1) + (1*5x) + (1*-1)
25x^2 - 5x + 5x -1
25x^2 -1
A simpler way is to memorize this formula
(Square1 - square2)= (sqrt of square1- sqrt of square2)*(sqrt of square1 + sqrt of sqaure2)
Answer: x=3
Step-by-step explanation:
16 = 7 + 3x
9 = 3x
3 = x
:0
Answer:
4
Step-by-step explanation:
If she makes 4 sandwiches, she splits the 4 sandwiches among 8 children. 4/8 is 1/2 which is half a sandwich for everyone.