(6/5a³x^4-0.9ax³)÷3/5ax³ (7x²y³-8x³y²z)÷8x²y²
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![(6/5a³x^4-0.9ax³)÷3/5ax³ (7x²y³-8x³y²z)÷8x²y²](/uploads/image/z/1673045-53-5.jpg?t=%EF%BC%886%2F5a%26%23179%3Bx%5E4%EF%BC%8D0.9ax%26%23179%3B%EF%BC%89%C3%B73%2F5ax%26%23179%3B+%EF%BC%887x%26%23178%3By%26%23179%3B%EF%BC%8D8x%26%23179%3By%26%23178%3Bz%EF%BC%89%C3%B78x%26%23178%3By%26%23178%3B)
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(6/5a³x^4-0.9ax³)÷3/5ax³ (7x²y³-8x³y²z)÷8x²y²
(6/5a³x^4-0.9ax³)÷3/5ax³ (7x²y³-8x³y²z)÷8x²y²
(6/5a³x^4-0.9ax³)÷3/5ax³ (7x²y³-8x³y²z)÷8x²y²
(6/5a³x^4-0.9ax³)÷3/5ax³
= 6/5a³x^4 ÷ 3/5ax³ - 0.9ax³ ÷ 3/5ax³
= 2 a^2 x^2 - 1.5
(7x²y³-8x³y²z)÷8x²y²
= 7x²y³ ÷ 8x²y² - 8x³y²z ÷ 8x²y²
= 7/8 y - xz