Determine if 9x2 - 42x + 49 can be the area of a sq. If so, what would the value of x have to be if the area of the sq is 64 sq mt? A = s2?
回答 (1)
2016-11-18 4:40 am
(x-7)^2=64
x=15
x=15
收錄日期: 2021-04-23 23:47:13
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