numerical coefficient of x in following expression (-x + 9xy + 6y² - 8x²)
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... 7x = (3 + 7)x = 10x (ii) -5xy + 9xy = ( -5 + 9)xy = 4xy ... (i) Required expression = (x - 3y - 2z) + (5x +7y - 8z) +(3x - 2y + 5z) Collecting ... Now, required expression = (4x2 + 3y2 - xy + 8) - (- 3x2 + 4y2 - xy + x - y + 3) = 4x2 + 3y2 ... Answer: The numerical coefficient of each term in the given algebraic expressions is as follows.
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