the sum of the squares of two consecutive numbers is 221 find the numbers
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Hlo Friend
Let x and x+1 be the consecutive integers.
The sum of squares is:
(x)² + (x+1)² = 221
Expand second term:
x² + x² + 2x + 1 = 221
Combine like terms:
2x² + 2x + 1 = 221
Subtract 221 from both sides to make quadratic form:
2x² + 2x - 220 = 0
Divide both sides by 2:
x² + x - 110 = 0
Factor:
(x + 11)(x - 10) = 0
x = -11 or x = 10
Answers: 10 and 11 or -10 and -11
Let x and x+1 be the consecutive integers.
The sum of squares is:
(x)² + (x+1)² = 221
Expand second term:
x² + x² + 2x + 1 = 221
Combine like terms:
2x² + 2x + 1 = 221
Subtract 221 from both sides to make quadratic form:
2x² + 2x - 220 = 0
Divide both sides by 2:
x² + x - 110 = 0
Factor:
(x + 11)(x - 10) = 0
x = -11 or x = 10
Answers: 10 and 11 or -10 and -11
paraspatil75:
thanks bro
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hope it helps you ans 10 and 11
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