Question

5x+7y-2z)-(3x-7z+4)​

Answer 1

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$(5x + 7y - 2z) - (3x - 7z + 4)$

$5x + 7y - 2z - 3x + 7z - 4$

$5x - 2x + 7y - 2z + 7z + 4$

$3x + 7y + 5z + 4$

Answer 2

Answer:

(i) Required expression = (x – 3y – 2z) + (5x + 7y – 8z) + (3x – 2y + 5z). Collecting ... (iv) x3 − 5x2 + 3x + 1, take away 6x2 − 4x3 + 5 + 3x ... Sum of (13x – 4y + 7z) and (–6z + 6x + 3y).