can you please solve this sum please it's urgently plzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
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Answer:
1) x² + 2xy + y² + 7x -14y + 12
2) 9x² + 16y² - 24xy + 6x - 8y - 35
Step-by-step explanation:
1) (x- 2x - y)² + 7(x-2y) + 12
=> (-x-y)² + 7x - 14y + 12
=>(-x-y) × (-x-y) + 7x - 14y + 12
=> x² + xy + xy + y² + 7x - 14y + 12
=> x² + 2xy + y² + 7x - 14y + 12
2) (3x-4y)² + 2(3x-4y) - 35
=> 9x² + 16y² - 24xy + 6x - 8y - 35
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