If six digit a2875b is divisible by 99, then two digit AB is ()

If six digit a2875b is divisible by 99, then two digit AB is ()

99=11x9
a+b+2+8+7+5=a+b+22=9k,a+b=9k-22
0

If the six digit 1992 can be divided by 105, then the last two digits are______ ．

Because 105 = 3 × 5 × 7, 105 can be divisible by 3, 5 and 7 at the same time. According to the characteristics of the number divisible by 5, the six digit number has the following seven possibilities: 199200199230199260199290199215199245199275

If the six digit 1992 can be divided by 105, then the last two digits are______ ．

Because 105 = 3 × 5 × 7, 105 can be divisible by 3, 5 and 7 at the same time. According to the characteristics of the number divisible by 5, we know that there are seven possibilities for this six digit number: 199200199230199260199290199215199245199275. Finally, we use 7 to try to know that 199290 can be divisible by 7. Therefore, 199290 can be divisible by 105, and its last two digits are 90

Try to write a quadratic trinomial about X, such that the coefficient of the quadratic term is 2, the constant term is 3, and when x = 1, the value of this polynomial is 6

2x²+bx+3
When x = 1
2·1²+b·1+3=6
→b=1
The polynomials are
2x²+x+3

On the quadratic trinomial of X, if the coefficient of quadratic term is 3, the coefficient of primary term is - 2, and the constant term is - 1, then the polynomial should be

Then this polynomial should be: 3x & # 178; - 2x-1

Given a quadratic trinomial about X, the coefficient of quadratic term is - 1, the coefficient of primary term is 2, and the constant term is - 3, then the quadratic trinomial is?
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-X & # 178; + 2x-3 is too simple. Can't you just write it directly

A quadratic trinomial formula about X, the coefficient of the quadratic term is - 1, the coefficient of the primary term and the constant term are negative 1 / 2, then what is the formula?

-x²-1/2x-1/2

Please write out a quadratic trinomial formula about X so that the coefficient of the quadratic term is negative 1, the coefficient of the primary term is 2, and the constant term is negative 5?

-Square of X + 2x-5

Write out a quadratic trinomial with the letter X, the highest number of terms is 2, and the coefficient of the first term and the constant term are opposite to each other

x^2+x-1

On the quadratic trinomial of X, if the coefficient of the quadratic term is - 1, the coefficient of the primary term is 2, and the constant term is - 3, then the quadratic trinomial is -______ ．

∵ on the quadratic trinomial of X, the coefficient of the quadratic term is - 1, the coefficient of the quadratic term is - X2, the coefficient of the primary term is 2, the coefficient of the primary term is 2x, and the constant term is - 3. The quadratic trinomial is: - x2 + 2x-3. So the answer is: - x2 + 2x-3