ут a / (5x + 4) * (5x - 4) - (5x + 1) ^ 2; (2x + 1 - Dicamon

Question

ут a / (5x + 4) * (5x - 4) - (5x + 1) ^ 2; (2x + 1)(4x ^ 2 - 2x + 1) - 2x(4x ^ 2 - 5); (4x + y) ^ 3 - (4x - y) ^ 3 - 2y(y ^ 2 + 48x ^ 2) у 24

Answer

( , san B. 2,7 . Al tác a ) ( khir du b (2x+1x(4x^ 4 -2x+1)-2x(4x^ 4 -5); 10x = 10x + 1; 5x+4*5x-4)-(5x+1)^ 2; 25x ^ 2 - 16 - (25x ^ 2 + 10t + 1); =25x^ 2 -16-25x^ 2 -10x-1; 10u -

Answer

(5x + 4)(5x - 4) - (5x + 1) ^ 2; =25x^ 2 -16-(25x^ 2 +10x+1 ) =25x^ 2 -16-25x^ 2 -10x-1 17 b)(2x+1)(4x^ 2 -2x+1)-2x(4x^ 2 -5) 10x 1

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