Solve the equation. Express radicals in simplest form.
+ x + 
= 0
A. {5 + 
}
B. {-10 + 
}
C. {5 ± 
}
D. {-5 ± 
}
Answer: D
Mathematics
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of plywood, 
of pressed board, and 
of formica. What is the thickness of the lab bench?
A. 1
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B. 
in.
C. 
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D. 2
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A. 
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C. 
D. 
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