Math, asked by shikatoawomi1976, 2 months ago

1. Factorise the following using proper identities :
i) 25x²y² - 20xy²z + 4y²z²​

Answers

Answered by virajkhendake
7

Answer:

25x2y2 - 20xy2z + 4y2z2

= (5xy)2 - 2൵ × 2yz + (2yz)2

= (5xy + 2yz)2

= y2 (5x + 2z)2

Answered by bharathieyal
5

Answer:

(5xy-2yz)

{(a - b) }^{2}  =  {a}^{2}  - 2ab  +  {b}^{2}

25x²y²-20xy ²z+ 4y ² z²

Hear,a²=(5 xy)² ,b²= (2yz) ²

=(5xy-2yz)²

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