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Aleonysh [2.5K]
3 years ago
5

Answer!!!!!!!!!!!!!and explain plz

Mathematics
1 answer:
Mama L [17]3 years ago
8 0
D

add 49 to both sides to get x by itself
x^2 - 49 = 0
+49 +49

square root both sides to get rid of the square
√x^2 = √49
x= ±7

since both -7 and 7 are square roots to 49, it’s D
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