Question

factorise 100 a ²-196 b²​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

(10a + 14b)(10a - 14b)

Step-by-step explanation:

100 a² - 196 b²

(10 a)² - (14 b)²

a² - b² = (a+b)(a-b)

∴ (10 a)² - (14 b)²

= (10a + 14b)(10a - 14b)

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