Question

(x+3)^2=(x+8)^2 найдите корень уравнения

Answer 1

х+8)²=(х+3)²

х^2+16x+64=x^2+6x+9

x^2+16x-x^2-6x=9-64

10x=-55

x=-5.5

Answer 2

(х+3)² = (х+8)²
х² + 6х + 9 = х²+ 16х + 64
х²-х² + 6х - 16х = 64 - 9
-10х = 55
х = -5.5