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tensa zangetsu [6.8K]
4 years ago
6

The sum of a number and its square is 42. Which equation can be used to find the two numbers for which this is true?

Mathematics
2 answers:
Arada [10]4 years ago
6 0

Answer:

x²+x=42  ( the number is either 6 or -7)

Step-by-step explanation:

x²+x=42

x²+x-42=0  

x² +7x-6x-42=0   (midterm break)

x(x+7)-6(x+7)=0

(x-6)(x+7)=0

x-6=0;   x+7=0

x=6;     x=-7

dalvyx [7]4 years ago
4 0

Answer: The answer is A.

Step-by-step explanation:

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