W² - 49 = 0
w² - 7² = -
(w-7)(w+7)=0
w -7=0 , or w + 7 =0
w=-7, w=7
Answer: -7, 7.
Answer:
It is 4
Step-by-step explanation:
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Answer:
Z
y
x
Step-by-step explanation:
zy
xz
xy