Bài tập 6.22 trang 19 toán lớp 8 tập 2...

{
"content1": "a) Simplifying each fraction, we get: 1/x + 2/(x+1) + 3/(x+2) - 1/x - 2/(x+1) - 3/(x+2) = 0",
"content2": "b) Simplifying each fraction, we get: (2x-1)/x + (1-x)/(2x+1) + 3/(x^2-9) + (1-2x)/x + (x-1)/(2x+1) - 3/(x+3) = 0",
"content3": "a) Combining like terms, we get: 1/x - 1/x + 2/(x+1) - 2/(x+1) + 3/(x+2) - 3/(x+2) = 0",
"content4": "b) Combining like terms, we get: (2x-1+x-2x)/x + (1-x+x-1)/(2x+1) + 3/(x^2-9) - 3/(x+3) = 0",
"content5": "a) Using the property that a fraction over itself is equal to 1, we can simplify the expression in part a) to get 0.",
}