Answer:
![2mn](https://tex.z-dn.net/?f=2mn)
Step-by-step explanation:
![\sqrt{9m^2*n^2} + 2\sqrt{m^2*n^2} -3mn](https://tex.z-dn.net/?f=%5Csqrt%7B9m%5E2%2An%5E2%7D%20%2B%202%5Csqrt%7Bm%5E2%2An%5E2%7D%20-3mn)
Answer:
4x² + 4x + 5
Step-by-step explanation:
Note that (f - g)(x) = f(x) - g(x), thus
f(x) - g(x)
= 5x² - 3 - (x² - 4x - 8 ) ← distribute parenthesis by - 1
= 5x² - 3 - x² + 4x + 8 ← collect like terms
= 4x² + 4x + 5
Answer:
ok 4 ways
Step-by-step explanation:
1.add 5+4=9
if not
2.4-5=-1
if not
3. 4x5=20
if still not then
4. 4/5=0.8
hope that helps
12.7 rounded to nearest whole number is 13, since 7 rounds 2 up.
Answer:
576 ways
Step-by-step explanation:
There are 4 choices for the column of pawn in the 1st row
There are 3 choices for the column of pawn in the 2nd row,
There are 2 choices for the column of pawn in the 3rd row, and
There is 1 choice for the column of the pawn in the 4th row
Which gives a total of 4! = 24
Also, the pawns are distinct, so there are 4! ways to place them in these chosen positions;
4! = 24
So, there are 24 * 24 possible ways
= 576 ways