Question

Using identity find (4a - 6b)(4a + 6b).​

Answer 1

Answer:

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Answer 2

16a² - 36b²

Step-by-step explanation:

QUESTION :-

Using identity, find (4a - 6b)(4a + 6b)

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SOLUTION :-

(4a - 6b)(4a + 6b)

=> (4a)² - (6b)²

[by using the identity, (a - b)(a + b) = a² - b²]

=> 4²a² - 6²b²

=> 16a² - 36b²

Therefore, the answer is 16a² - 36b².

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USED IDENTITY :-

• (a - b)(a + b) = a² - b²

Identities to know :-

• a² + b² = (a - b)² + 2ab, or
• a² + b² = (a + b)² - 2ab
• (a + b)² = a² + 2ab + b²
• (a - b)² = a² - 2ab + b²

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Hope it helps.

#BeBrainly :-)