`2x^2 + 10x + 3x - 2x^2 = 26`
`<=> 13x = 26`
`<=> x = 2`
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`2x^2 + 10x + 3x - 2x^2 = 26`
`<=> 13x = 26`
`<=> x = 2`
2x(x-5)-x(3+2x)=26
Tìm x, biết: 2x(x – 5) – x(3 + 2x) = 26.
Tìm x, biết: 2x(x – 5) – x(3 + 2x) = 26.
Tìm x:
2x(x-5)-x(3+2x)=26
Tìm x
2x(x-5)+x(3+2x)=26
Bài 19 Rút gọn
1) (x+2)^2+(3-x)^2
2) (4-x)^2 -(x-3)^2
3) (x-5)(x+5)-(x+5)^2
4) (x-3)^2-(x-4)(x+4)
5) (y^2 -6y+9)-(3-y)^2
6. (2x+3)² –(2x–3).(2x+3)
Tìm x , biết
2x(x-5)-x(3+2x)=26
Bài 19 rút gọn
1) (x+2)^2+(3-x)^2
2) (4-x)^2-(x-3)^2
3) (x-5)(x+5)-(x+5)^2
4)(x-3)^2-(x-4)(x+4)
5) (y^2-6y+9)-(3-y)^2
6) (2x+3)^2-(2x-3)(2x+3)
Tìm x, biết 2x(x-5) - x (3+2x) = 26