Question

solve:2-1/3(3×-3-1/4)(7×+7-5×-5)=11-2×​

Answer 1

Step-by-step explanation:

(3x-3-1/4) = (12x-12+1)/4= (12x-11)/4

(7x+7-5x-5) = (2x+2)

2-1/3(3x-3-1/4)(7x+7-5x-5) = 11-2x

2-1/3(12x-11)/4(2x+2) = 11-2x

2-1/3((12x-11)/4)(2(x+1)) = 11-2x

2-1/3((12x-11)/2)((x+1) = 11-2x

2-(12x²+12x-11x-1)/6 = 11-2x

(12-12x²-12x+11x+1)/6 = 11-2x

13-12x²-x = 66-12x

13-66 = 12x²+x-12x

-53 = 12x²-11x

12x²-11x+53 = 0