Please answer a little quietIT is urgent.Factorize: 4(x-y)^2 -9 .Evaluate : 1001×99
1 answer:
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
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x = 12
Step-by-step explanation:
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I hope this helps!
~kaikers
Correct me if im wrong but the answer is (B) hope this helps!