How many two-digit, positive integers can be formed from the digits 1, 3, 5, and 9, if no digit is repeated?
1 answer:
You might be interested in
Answer:
A
Step-by-step explanation:
To multiply powers of a variable, add the exponents:
This rule works for all exponents, positive, negative, or zero. Also, remember that .
Also, remember the definition of negative exponent:
To multiply the two monomials, start by multiplying the coefficients, 14 and 4. That gives 56, so your answer begins with 56.
Now for the powers of x,
For the powers of y,
Your answer is