Rút gọn biểu thức sau
lamf mot nua cung dc
----- Nội dung ảnh -----
Bài 3: Rút gọn biểu thức sau:
1) \((2x+1)^{2} + (2x-1)^{2}\)
2) \(- (x+1)^{2} - (x-1)^{2}\)
3) \((x + 2y)^{2} - (x - 2y)^{2}\)
4) \((3 + y)^{2} - (x - y)^{2}\)
5) \(-(x + 5)^{2} - (x - 3)^{2}\)
6) \((3x - 2)^{2} - (3x - 3)^{2}\)
7) \((x - 4y)^{2} + (x + 4y)^{2}\)
8) \(-(2 - x)^{2} - (5x - 3)^{2}\)
9) \((-2x + 3)^{2} - (5x - 3)^{2}\)
10) \((2x + 1)^{2} + (-3x - 1)^{2}\)
11) \(-(x - y)^{2} - (2x + y)^{2}\)
12) \(- (x + 1)^{2} + (x - 1)^{2}\)
13) \((2x + 7)^{2} + (-2x - 3)^{2}\)
14) \(-(2x - y)^{2} - (-x + 3y)^{2}\)
15) \(- (2x + 7)^{2} + (-2x - 3)^{2}\)
----- Nội dung ảnh -----
Bài 3: Rút gọn biểu thức sau:
1) \((2x+1)^{2} + (2x-1)^{2}\)
2) \(- (x+1)^{2} - (x-1)^{2}\)
3) \((x + 2y)^{2} - (x - 2y)^{2}\)
4) \((3 + y)^{2} - (x - y)^{2}\)
5) \(-(x + 5)^{2} - (x - 3)^{2}\)
6) \((3x - 2)^{2} - (3x - 3)^{2}\)
7) \((x - 4y)^{2} + (x + 4y)^{2}\)
8) \(-(2 - x)^{2} - (5x - 3)^{2}\)
9) \((-2x + 3)^{2} - (5x - 3)^{2}\)
10) \((2x + 1)^{2} + (-3x - 1)^{2}\)
11) \(-(x - y)^{2} - (2x + y)^{2}\)
12) \(- (x + 1)^{2} + (x - 1)^{2}\)
13) \((2x + 7)^{2} + (-2x - 3)^{2}\)
14) \(-(2x - y)^{2} - (-x + 3y)^{2}\)
15) \(- (2x + 7)^{2} + (-2x - 3)^{2}\)