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Lmnhaz4039
14.01.2020 •
Mathematics
Show how you can use the distributive property to multiply 22x85
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Ответ:
Ответ:
x= 8
Step-by-step explanation:
Right angled triangle :
Use Pythagorean theorem,
Base² + altitude² = hypotenuse²
x² + ( 2x - 1)² = (2x +1)²
(2x + 1)² - (2x-1)² -x² = 0
4*2x*1 - x²= 0
8x - x² = 0
x(8 - x) =0
x = 0 {Ignore} or 8 - x= 0
-x = -8
x = 8
x = 8