Question

Tìm x

2x(x - 5 ) - x(3+2x) = 26

Giúp mik

Answer 1

2x(x - 5 ) - x(3+2x) = 26

2x²-10x-3x+6x=26

2x²-7x=26

x.(2x-7)=26

         Chỗ đây bn tự liêt kê ra nha

Answer 2

\(\Leftrightarrow2x^2-10x-3x-2x^2=26.\)

\(\Leftrightarrow-13x=26\Rightarrow x=-2\)

Answer 3

2x(x-5) -x(3+2x) = 2x² -10x -3x -2x²  = 26

-13x =26

x = -2