If a and B are fixed values, the equation 2kx + a3 = 2 + X − bk6 about X, no matter what the value of K is, its root is always 1. Find the value of a and B

If a and B are fixed values, the equation 2kx + a3 = 2 + X − bk6 about X, no matter what the value of K is, its root is always 1. Find the value of a and B

Both sides of the equation are multiplied by 6 at the same time to get: 4kx + 2A = 12 + x-bk, (4k-1) x + 2A + bk-12 = 0 ①, ∵ no matter what the value of K is, its root is always 1, ∵ substitute x = 1 into ①, 4k-1 + 2A + bk-12 = 0, then when k = 0, k = 1, we can get the equations: − 1 + 2A − 12 = 04 − 1 + 2A + B − 12 = 0, the solution is a = 132, B = - 4

If a and B are fixed values, the equation 2kx + a3 = 2 + X − bk6 about X, no matter what the value of K is, its root is always 1. Find the value of a and B

Both sides of the equation are multiplied by 6 at the same time to get: 4kx + 2A = 12 + x-bk, (4k-1) x + 2A + bk-12 = 0 ①, ∵ no matter what the value of K is, its root is always 1, ∵ substitute x = 1 into ①, 4k-1 + 2A + bk-12 = 0, then when k = 0, k = 1, we can get the equations: − 1 + 2A − 12 = 04 − 1 + 2A + B − 12 = 0, the solution is a = 132, B = - 4

If the equation x ^ 2 + 2 (K + 1) x + K ^ 2-1 = 0 has two roots x 1 and x 2, find the minimum value of x 1 ^ 2 + x 2 ^ 2

∵ X1 and X2 are the two roots of the equation ∵ X1 + x2 = - 2 (K + 1) X1 * x2 = k ^ 2-1 ∵ X1 ^ 2 + x2 ^ 2 = (x1 + x2) ^ 2-2x1 * x2 = [- 2 (K + 1)] ^ 2-2 (k ^ 2-1) = 2K ^ 2 + 8K + 6 ∵ let y = 2K ^ 2 + 8K + 6, the quadratic function has the minimum value ∵ y = - 2, that is, the minimum value of X1 ^ 2 + x2 ^ 2 = - 2

Let proposition p: for the equation x ^ 2 + KX + 1 = 0, there is no real root, and the function f (x) = x ^ 3-kx ^ 2 + 3kx + 1 is on (negative infinity, positive infinity)
If the proposition "P" or "Q" is true and "P" and "Q" are false, the value range of real number k can be obtained

Q must be false
According to the meaning of the topic, the proposition "P" or "Q" is true, and "P and Q" are false,
P is true
k^2-4

How to say the Great Wall in English

the Great Wall
The must be added
the moon ,the sun

And what do I say in English

you have me still.

There are five people in my family. They are my father, my mother, my grandfather, my grandmother and my English translator

I'm glad to answer your question
The translation of this sentence should be
There are five people in my family,they are my father,my mother,my grandfather,my grandmother and me.
I'm used here because I'm an object
So it's not right to have one downstairs

I like these food very much
Such as the title

I like these food very much

My favorite food

My favorite food is + name of your favorite food

What's your favorite food?
It's sunny?

what's you favourite food?
The sun is shining brightly