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Willow Mcknight
Mathematics
28 October, 22:17
Solve for all values of x by factoring.
X? - 48 = 1
+3
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Dylan Summers
28 October, 22:26
0
Step-by-step explanation:
hello:
x²-48 = 1
x²-48-1 = 1-1
x²-49=0 means : x²-7²=0
by identity : a²-b² = (a-b) (a+b)
by factoring: (x-7) (x+7) = 0
x-7=0 or x+7=0
x=7 or x = - 7
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