Math, asked by vigneshmateti07, 4 months ago

Factorise: 5(x+y)2-6(x+y)-8

Answers

Answered by thakursamar432

2

Step-by-step explanation:

Let (3x + y) = z. Then, the expression becomes:

5z2 + 6z - 8

= 5z2 + 10z - 4z - 8

= 5z(z + 2) - 4(z + 2)

= (z + 2)(5z - 4)

= (3x + y + 2) [5(3x + y) - 4]

= (3x + y + 2) (15x + 5y - 4)

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