Math, asked by grihith2006, 5 months ago

7+20x-30y-8(2x-3y)^2(factorise)

Answers

Answered by BoldStyle

2

For ( 2x - 3y ) ²

Using the identity

• ( a - b ) ² = a² - 2ab + b²

7 + 20x - 30y - 8 ( 4x² - 12xy + 9y² )

7 + 20x - 30y - 32x² + 96xy - 72y²

- 32x² + 96xy - 72y² + 20x - 30y + 7

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