If the value of the quadratic polynomial - 3 ^ 2 + MX + NX ^ 2-x + 3 about the letter X is independent of X, find the value of (M + n) · (m-n)

If the value of the quadratic polynomial - 3 ^ 2 + MX + NX ^ 2-x + 3 about the letter X is independent of X, find the value of (M + n) · (m-n)




It is known that - ax ^ by ^ A is a quintic monomial about the letters X and y, and the coefficient is 4. Find the value of (a + b) (a-b) + a if the polynomial x ^ 4 about X+
If the polynomial x ^ 4 + (A-1) x ^ 3 + 5x ^ 2 - (B + 3) X-1 about X does not contain x ^ 3 and X terms, find the values of a and B
It is known that - ax ^ by ^ A is a quintic monomial about the letters X and y, and the coefficient is 4. Find the value of (a + b) (a-b) + a


Coefficient - a = 4
a=-4
The number of times is five
So B + a = 5
a=-4
b=9
So the original formula = (- 4 + 9) (- 4-9) + (- 4)
=-65-4
=-69



Write a polynomial satisfying the following conditions: 1. It only contains the letter X 2. It does not contain a constant term 3. The degree is 2 4. The coefficient of each monomial in the polynomial is 1


x²+x



How many liters of water is a square of water


A square of water is a ton, a ton is a kilo, a liter is a kilo, so a square of water is equal to a thousand liters!



What is the remainder of 3 divided by 13 to the power of 200?


The 13th power of 3 can divide 13, so the 195th power of 3 can also divide 13, and the 5th power of 3 is 243, so the remainder of 13 is 9
So the 200 th power of 3 divided by 13 is 9



How many liters of water is one jin of water?


Jin and Sheng are different physical units and cannot be converted directly. The volume of 1 jin of water is 0.5 liter



6 divided by 0.5, the quotient is 13, what is the remainder


1



How many liters of water is equal to one cubic meter of water?


A thousand



What is the remainder of 2006 × 2007 × 2008 divided by 7?


2006 divide by 7 remainder 4
2007 divided by 7, remainder 5
2008 divided by 7 remainder 6
4*5*6=120
120 divided by 7 remainder 1
2006 × 2007 × 2008 divided by 7, the remainder is 1



How many tons of water is a liter of water?
& & &
One liter = one liter?


Agree to the fifth floor
Mass = density × volume
1 liter # 1 liter, 1 liter = 1000 liters
Kiloliter liter