Im not %100 sure but i think its 24a^2 - 42ab - 24b2
Answer:
1=B
Step-by-step explanation:
Answer:
m=4 , m=-2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
If digits can be repeated, that means there are 10 options for each place in the pin code. 10*10*10*10 = 10,000
If digits can not be repeated, there are 10 options for the first digit, 9 options for the second digit, 8 options for the third digit, and 7 options for the fourth digit. 10*9*8*7 = 5040
Answer:
STEP BY STEP EXPLANATION
To make a perfect square we should add