x=✓21
Explaination:
•Let x be the number
(Determine the number sentence)
x+x²=42
2x²=42
__ __
2 2
x²=21
(square both sides)
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Answers & Comments
x=✓21
Explaination:
•Let x be the number
(Determine the number sentence)
x+x²=42
2x²=42
__ __
2 2
x²=21
(square both sides)
x=✓21