Question

Factorise:- a) 36z2 – 49 x2 ​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

$= (36 {z}^{2}) - (49 {x}^{2} ).$

$= {(6z)}^{2} - {(7x)}^{2} .$

$= (6z - 7x)(6z + 7x).$

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