Math, asked by jdmotorwala, 20 days ago

11. Factorise :
( 1 ) x2 + 4y2 + 25z2 + 4xy – 20yz - 10zx

Answers

Answered by sunitaoppo18

1

Step-by-step explanation:

4x

2

+9y

2

+25z

2

+12xy+30yz+20zx

=4x

2

+12xy+9y

2

+25z

2

+30yz+20zx

=(2x+3y)

2

+(5z)

2

+30yz+20zx

=(2x+3y)

2

+(5z)

2

+2×5z(3y+2x)

=(2x+3y+5z)

2

.

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