By using identinty a² - b² = (a + b)(a - b) in numerator and splitting method in denominator :
Hence, answer is
________________________________
2.
By using identinty a² + 2ab + b² = (a + b)² in numerator and a² - n² = (a + b)(a - b) in denominator :
Hence, answer is
________________________________
3.
By using splitting method in both numerator and denominator :
Hence, answer is
Answer from: Quest
It comes out of vehicles which pollutes the air
Answer from: Quest
i dont know sorry
step-by-step explanation:
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