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one positive number is 2 more than another. The sum of their squares is 34. Find the smaller number.​

User Squivo
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2 Answers

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The smaller number is 3. The number 3 squared is 9, plus the other number 5 squared, which is 25. when you add them, you get 34
User Richard Pascual
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3 votes

Answer:

the numbers are 3 and 5

Explanation:

x = first number

y = second number

a. x+2 = y

b. x^2 + y^2 = 34

Replace y from equation a into equation b:

x^2 + (x+2)^2 = 34

Expand it

x^2 + x^2 + 4x + 4 = 34

2*x^2 + 4x = 30

2x^2 + 4x - 30=0

solving x:

x = -5 and x =3 , it says it is a positive number, then it is x is 3

and the second number, y = x + 2

y = 5

Lets test it!

3^2 + 5^ 2 = 9 + 25 = 34

User Kelly
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