Question

factorise : 4x square - 49​

Answer 1

Answer:

(2x + 7)(2x - 7)

Step-by-step explanation:

4x² -- 49

(2x)² - (7)²  

(2x + 7)(2x - 7)        _ _ _ _ _{using identity a² - b² = (a + b)(a - b) }

Answer 2

Step-by-step explanation:

4x square -49

=(2x) square - 7 square

=(2x +7) (2x -7)

Using identity

a square - b square

= (a+b) (a -b)

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