Minimum value of a & # 178; X & # 178; - 4ax-5 / 3

Minimum value of a & # 178; X & # 178; - 4ax-5 / 3

When x = 2 / A, y = - 17 / 3

Let x, y ∈ R and X + y = 5, then the minimum value of 3x + 3Y is______ ．

From 3x ＞ 0, 3Y ＞ 0, 3x + 3Y ≥ 2, 3x + y = 183, so the minimum value of 3x + 3Y is 183

When x=_______ y=_____ The tense x ^ 2 + y ^ 2 + 2x-6x + 21 gets the minimum, which is_____
sit back and wait

x^2+y^2+2x-6x+21＝（x+1) ^2+(y-3）^2+11
So when x=___ -1____ y=___ 3__ The tense x ^ 2 + y ^ 2 + 2x-6x + 21 gets the minimum

The operation of rational numbers in junior high school,

What's the difference between the reciprocal and the opposite of rational number operation in junior high school?

This has been asked many times
The reciprocal is, for example, the reciprocal of X is 1 / X
On the contrary, numbers are x and - X
X and 1 / X are reciprocal
X and - X are opposite numbers

The value of the algebraic formula (2x's square + ax + y + 6) - (4bx's Square - 2x + 5Y + 4) has nothing to do with the value of the letter X. find the value of a and B
X is the unknown

(2x square + ax + y + 6) - (4bx square - 2x + 5Y + 4) = (2-4b) x square + (a + 2) x-4y + 2
Because it has nothing to do with the value of X, 2-4b = 0, a + 2 = 0, a = - 2, B = 1 / 2

1. If the a power of 2 = 3, the B power of 2 = 5, the C power of 2 = 30, we use a B to express C as 2. If the product of (x + 2) (x-a) does not contain a power term of X, then a is equal to 2

1.30=5*2*3 2^c=2^b*2^1*2^a =2^(a+b+1) c=a+b+1
2. (x + 2) (x-a) = x ^ 2 + (2-A) x-2a if there is no linear term of X, then 2-A = 0, a = 2

If 2x + 5y-2 = 0, try to find the x power of 4 times the Y power of 32

X = - 4, y = 2, value = 4

-{-[-(-a^2)^3]^4}^2=___ ,(-x)^2·x^3=___ If 2x + 5y-3 = 0, then the value of 4 ^ x · 32 ^ y is
Fill in the blanks,
-{-[-（-a^2）^3]^4}^2=___ ，（-x）^2·x^3=___ If 2x + 5y-3 = 0, then the value of 4 ^ x · 32 ^ y is uuuuuuuuuy.

①-{-[-(-a^2)^3]^4}^2=-a^48
②(-x)^2·x^3=x^5
③4^x·32^y=2^2x·2^5y=2^(2x+5y)=2^3=8
I don't know how to ask~
I hope my answer will help you. Take it_ ∩)O!

2x-5y / X-Y is equal to 3 / 2, how much is x / y?

The left fraction of the equation is divided by Y and X / y is treated as a new unknown