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:
It 20.54 round to the nearest tenth which is 20.5
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Simplify the expression.
2x^3-10x^2+22x-14