Can 1.8A and 1.2A be multiplied? Or, can similar terms be multiplied

Yes. (1.8A) x (1.2A) = 1.8xax1.2xa = (1.8x1.2) x (AXA) = 2.16A ^ 2

RELATED INFORMATIONS

1. Several formulas for multiplication of polynomials by polynomials (a+b)(c+d)= (a+b)(c-d)= (a-b)(c+d)= (a-b)(c-d)= How to write these formulas?
2. May I ask the general expression and number of terms of bivariate polynomials of higher degree The bivariate polynomial is Z = A0 + A1 * x + A2 * y, and there are three terms; The bivariate quadratic polynomial is Z = A0 + A1 * x + A2 * y + a3 * x * x + A4 * x * y + A5 * y * y, with 6 terms; So if it is a binary m-degree polynomial, how to express it? What is the total number of terms?
3. The complex z = 3 + AI and | Z-2 are known|
4. Given the complex z = 2m-1 + (M + 1) I (1) if the point corresponding to the complex Z is in the first quadrant, find the value range of the real number m; (2) if the complex | Z | ≤ 3, find the value range of the real number M
5. Given the complex number Z = (m-3m-4) + (M-4) I, find the value range of real number M
6. Complex modulus```````` If the module of complex number (radical 2 - 2ai) / (a + 2I) is radical 2, then the value of real number a is_____
7. Modules of complex numbers What is the module of 1 + radical 3I What is the main value of the radiation angle
8. The module of complex number Z = [(1 + I) ^ 200 * (6 + 2I) - (1-I) ^ 198 * (3-I)] / [(1 + I) ^ 198 * (23-7i) + (1-I) ^ 194 * (10 + 2I), find | Z| Don't use triangles. I haven't taught you
9. Z = (2-I) ^ 2, find the modulus of complex Z What is the mathematical meaning of "module" here Sorry, I hope you understand
10. What is the square of the complex number (5I + 2),
11. What is an item? What is the number of items? What is a similar item?
12. It is known that the product of a linear binomial and x ^ 2-3x + 1 does not contain a quadratic term. Please write a linear binomial satisfying the condition
13. If the product of a linear binomial and (x ^ 2-2x-1) does not contain a linear term, find the linear binomial, and let the linear binomial be x + a
14. A polynomial composed of two monomials is called a binomial. How many terms will be the result of multiplication of two binomials? Write several such products and write the result
15. The sum of not even numbers within 10 is______ The prime number that is not odd is______ ．
16. The number within 20 is both odd and composite number has () no decimal! The number within 20 is both even and prime number has? In natural numbers 1-20, odd numbers have () even numbers have () prime numbers have () combined numbers have ()
17. According to the number of divisors, natural numbers can be divided into: (1) prime numbers and composite numbers; (2) odd numbers and even numbers; (3) prime numbers, composite numbers and zero ④ Prime, composite and 1
18. According to the number of factors, natural numbers can be divided into () a odd number and even number, B prime number and composite number, C prime number, composite number, 0,1,
19. Natural numbers consist of. A. odd and even numbers B. Prime number and composite number
20. The product of the smallest natural number, the smallest prime number and the smallest composite number is ()