SOLUTION: The sum of a square of a positive number and the square of 3 more than a number is 45. what is the number?
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Question 965417: The sum of a square of a positive number and the square of 3 more than a number is 45. what is the number?
Found 2 solutions by t0hierry, macston:
Answer by t0hierry(194) (Show Source): You can put this solution on YOUR website!
x^2 + (3 + x)^2 = 45
2x^2 + 81 + 6x = 45
2x^2 + 6x = 36
x^2 + 3x = 18
x = 3
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
Subtract 45 from each side.
Divide by 2
ANSWER: The positive number is 3.
.
CHECK:
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