\(8.6+288:\left(x-3\right)^2=50\)
\(\Rightarrow48+288:\left(x-3\right)^2=50\)
\(\Rightarrow288:\left(x-3\right)^2=50-48\)
\(\Rightarrow288:\left(x-3\right)^2=2\)
\(\Rightarrow\left(x-3\right)^2=288:2\)
\(\Rightarrow\left(x-3\right)^2=144\)
\(\Rightarrow x-3=144\) hoặc \(x-3=-144\)
\(\Rightarrow x=147\) \(\Rightarrow x=-141\)
tíc mình nha
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1. 8x6+288:(x-3)2=50
48 + 288 : (x-3)2=50
288 : (x-3)2 = 50 - 48 = 2
(x-3)2 = 288 : 2 = 144
Ta thấy : (x-3)2 =122
=> x - 3 = 12
x = 12 + 3 = 15
2. bó tay
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