The minimum value of 9x^2 - 6 - 6x = Giá trị nhỏ nhất của 9x^2 - 6 - 6x
\(A=9x^2-6-6x\)
\(=\left(3x\right)^2-2\times3x\times1+1^2-1^2-6\)
\(=\left(3x-1\right)^2-7\)
\(\left(3x-1\right)^2\ge0\)
\(\left(3x-1\right)^2-7\ge-7\)
The minimum value of 9x^2 - 6 - 6x is \(-7\) when \(x=\frac{1}{3}\)
The minimum value of 9x2-6-6x is ...........
Assume that two numbers x and y satisfy: 2x + y = 6.
Find the minimum value of expression A = 4x2 + y2
Exam number 219:12
Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)
Question 1:
Given .
Find the value of "" such that its degree is equal to 4.
Answer: The value of "" is
Question 2:
The value of with is
Question 3:
Given .
The degree of is
Question 4:
Given .
The degree of is
Question 5:
Given .
The value of is
Question 6:
In this figure, if the length of the line segment is an even number.
Then .
Question 7:
Given .
The value of
Question 8:
The value of with is
Question 9:
Given with .
Then the minimum of is
Question 10:
The minimum value of is
For positive real numbers x,y,z so that: x+y+z = 3. Find the minimum value of expression
A = 1/( x^2 + x) + 1/(y^2+ y) +1/( z^2 +z)
find the minimum value ò B = (-x-2)4 + 5(x+2)2
Find the minimum value of \(S=\left|x+1\right|+\left|x+5\right|+\left|x+14\right|+\left|x+97\right|+\left|x+1920\right|\) ?
\(x\) and \(y\) are positive number. Find the minimum value of \(A=\left(x+y\right)\left(\frac{1}{x}+\frac{1}{y}\right)\)
Given x,y such that x^2-y^2=2. The value of expression A=2(x^6-y^6)-6(x^4+y^4)
Find the value of m such that x^4– mx^2 + 6 is divisible by x^2 – 1. Answer: m =
