Ask some math questions (algebra) 1. There are three types of integers: positive integers, zero integers and negative integers. Non negative integers refer to positive integers__________________ The smallest positive integer is_____________ The smallest negative integer is________________ . 2. If the opposite number of a number is non negative, then the number must be negative______________ . 3. If the reciprocal of a number is - 1.5, then the opposite of the number is -________________ .

Ask some math questions (algebra) 1. There are three types of integers: positive integers, zero integers and negative integers. Non negative integers refer to positive integers__________________ The smallest positive integer is_____________ The smallest negative integer is________________ . 2. If the opposite number of a number is non negative, then the number must be negative______________ . 3. If the reciprocal of a number is - 1.5, then the opposite of the number is -________________ .

1. There are three types of integers: positive integers, zero integers and negative integers. Non negative integers refer to (integers not less than 0), the smallest positive integer is (1), and the smallest non negative integer is (0)
2. If the opposite number of a number is non negative, then the number must be (non positive)
3. If the reciprocal of a number is - 1.5, the opposite number of the number is (2 / 3)

Question 1: if the polynomial 2x ^ 4-3x ^ 3 + ax ^ 2 + 7x + B has a factor X ^ 2 + X-2, then a / b =? 2: known a = (#) 179; √ 4 + (#) 179; √ 2 + 1, then 3 / A + 3 / a ^ 2 + 1 / A ^ 3 =? 3: a + 1 / b = 1, B + 1 / C = 1, then c + 1 / a =? 4: it takes a day for a project to be completed by Party A and B, and a and B are all natural numbers. Now Party B works for three days first, and Party A and Party B works together for one day?

1、 Because - 2 and 1 are the roots of x ^ 2 + X-2 = 0, so - 2 and 1 are also the roots of 2x ^ 4-3x ^ 3 + ax ^ 2 + 7x + B = 0, so: 4A + B + 42 = 0, a + B + 6 = 0, the solution is a = - 12, B = 6

The sum of three continuous natural numbers is 153. What are the three natural numbers?

Arithmetic solution: the middle number = 153 △ 3 = 51; therefore, the three numbers are: 50, 51, 52; equation solution: if the middle number is x, then the other two numbers are X-1, x + 1; X + (x-1) + (x + 1) = 153 3x = 153, x = 51; therefore, the three numbers are: 50, 51, 52