(2x + 6)(7 - 4x) = (2 - x)(8x + 1) - 10
14х - 8х² + 42 - 24х = 16х + 2 - 8х² - х - 10
- 8х² - 10х + 42 + 8х² - 15х + 8 = 0
- 25х + 50 = 0
25х = 50
х = 50 ÷ 25
х = 2
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(2x + 6)(7 - 4x) = (2 - x)(8x + 1) - 10
14х - 8х² + 42 - 24х = 16х + 2 - 8х² - х - 10
- 8х² - 10х + 42 + 8х² - 15х + 8 = 0
- 25х + 50 = 0
25х = 50
х = 50 ÷ 25
х = 2