Question

Factorise: 16y^2 – 121z^4

Answer 1

Answer:

16y^ - 121z^4 = 4

Step-by-step explanation:

hope it's helpful!!

Answer 2

Step-by-step explanation:

$16 {y}^{2} - 121 {z}^{4} \\ =( 4 {y})^{2} - (11 {z}^{2}) {}^{2} \\ \\ \\ = (4y - 11 {z}^{2} )(4y + 11 {z}^{2} )$

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