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4x^2=400 A. 4x=±20 B. x=±5 C. x=±10 D. x=±20

4x^2=400 A. 4x=±20 B. x=±5 C. x=±10 D. x=±20
asked 40.6k views
0 votes
4x^2=400

A. 4x=±20
B. x=±5
C. x=±10
D. x=±20

asked
User Poncho
by
8.0k points

1 Answer

2 votes
4x^2=400
x^2=100
x=±10
answered
User Daryl Wong
by
7.7k points
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