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State the property of real numbers being used1. 2(a+b)=2a+2b2. (x+a)(x+b)=(x+a)x+(x+a)b3. 7(a+b+c)=7(a+b)+7c4. 2(2+5)=(2+5)2

State the property of real numbers being used1. 2(a+b)=2a+2b2. (x+a)(x+b)=(x+a)x+(x+a)b3. 7(a+b+c)=7(a+b)+7c4. 2(2+5)=(2+5)2

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