what is -2xy^2 evaluated at x= -2 and y= -1?
回答 (11)
2008-06-13 2:17 pm
✔ 最佳答案
The answer is +4 
2008-06-15 4:23 pm
(- 2)(- 2)(1) = 4
2008-06-13 11:05 pm
-2xy^2
= -2(-2)(-1)^2
= -2(-2)(1)
= 4(1)
= 4
= -2(-2)(-1)^2
= -2(-2)(1)
= 4(1)
= 4
2008-06-13 9:16 pm
-2 * -2 * (-1)^2
=4 * 1
=4
=4 * 1
=4
2008-06-13 9:12 pm
-2xy^2
= -2(-2)(-1)^2
= 4(1)
= 4
= -2(-2)(-1)^2
= 4(1)
= 4
2008-06-13 9:12 pm
= -2 * (-2) * (-1)^2
= 4
= 4
2008-06-13 9:11 pm
Plug in the given values for x and y...
-2(-2)(-1)^2 = -2(-2)(1) = 4.
-2(-2)(-1)^2 = -2(-2)(1) = 4.
2008-06-13 9:11 pm
-2( -2) ( -1) ^2= 4
2008-06-13 9:11 pm
4
-2(-2)(-1^2)=4*1=4
-2(-2)(-1^2)=4*1=4
收錄日期: 2021-05-01 10:38:15
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