maths for functions
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4 is the right answer because the set of all real numbers
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Explanation: (x+1)2-x2=0
X2+2x+1-x2 = 0
2x+1=0
x=-½
Step-by-step explanation:
Explanation: (x+1)2-x2=0
X2+2x+1-x2 = 0
2x+1=0
x=-½
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