Question

(10x-5)^2-(8x-3)^2+4x ,если x=3

Answer 1

Ответ:

196

Пошаговое объяснение:

(10*3-5)^2-(8*3-3)^2+4*3

(25)^2-(21)^2+12

625-441+12

196

Answer 2

To evaluate the expression (10x-5)^2-(8x-3)^2+4x when x = 3, we substitute the value of x into the expression and perform the calculations. Here's how it looks:

(10(3) - 5)^2 - (8(3) - 3)^2 + 4(3) (30 - 5)^2 - (24 - 3)^2 + 12 (25)^2 - (21)^2 + 12 625 - 441 + 12 196 + 12 208

Therefore, when x = 3, the value of the expression (10x-5)^2-(8x-3)^2+4x is 208.