I DON'T KNOW HOW TO DO WORD PROBLEMS

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HOW DO YOU START WITH PROBLEM?
TWICE THE SQUARE OF A NUMBER MINUS 3 IS 47.FIND THE NUMBER
THAK YOU
 

Denis

Senior Member
Joined
Feb 17, 2004
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Adalia said:
HOW DO YOU START WITH PROBLEM?
TWICE THE SQUARE OF A NUMBER MINUS 3 IS 47.FIND THE NUMBER
THAK YOU
Please do not type using capitals.

Let n = the number; then twice the square = 2n^2; so:
2n^2 - 3 = 47

Finish it.
 
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