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MARSHMALLOW2005
@MARSHMALLOW2005
July 2022
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Решите пожалуйста!
3.Найдите значения выражений:
а) —5x — 26 при x = —2
б) 2x в третей степени при x = — 1/2
в)(a + b ) во второй степени при а=3,8; b = — 4
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wejde
Verified answer
1) -5x-26=-5(-2)-26=10-26=-16
2) 2x³=2(-1/2)³=2(-1/8)=-1/4=-0,25
3) (a+b)²=(3,8-4)²=(-0,2)²=0,04
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Answers & Comments
Verified answer
1) -5x-26=-5(-2)-26=10-26=-162) 2x³=2(-1/2)³=2(-1/8)=-1/4=-0,25
3) (a+b)²=(3,8-4)²=(-0,2)²=0,04