Answer:
1. (2x - 2y)² - 9
2. 99099
Step-by-step explanation:
We know the a+b formula :
(a-b)² = a² - 2ab + b²
1. 4(x-y)^2 -9
4(x² - 2xy + y²) - 9
4x² - 8xy + 4y² - 9
(2x - 2y)² - 9
2. 1001 × 99
= 99099
1001
× 99 ----------
9009
9009× ----------- 99099
I don't know the list method you have learned.
<span>The perfect square integers between 1 and 80 inclusive are ...
1
4
9
16
25
36
49
64
</span>
Step-by-step explanation:
you know the answerv noow
Answer:
₹47
Step-by-step explanation:
The relation between cost price, selling price, and profit is ...
profit = selling price - cost price
A loss is a negative profit.
__
Using the given values in the formula, we find ...
-6 = selling price - 53
47 = selling price . . . . . . . add 53 to both sides
The selling price of the product is ₹47.
