The square of one number is 23 less than the square of a second number. If the second number is 1 more than the first, what are
the two numbers?
If x represents the smaller number, then which of the following quadratic equations represents the word problem?
a. x² + 23 = x² + 2x + 1
b. (x + 23)² = x² + 2x + 1
c. x² + 23 = x² + 1
2 answers:
The correct answer is a
(X+1)^2 - x^2=23
X^2 + 2x + 1 -x^2 =23
2x +1 =23
2x =22
X= 11
X+1= 12
Yeah I think I had the test and A is right
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