Four expressions are shown: 10x + 6 12x + 4 2(5x + 3) 2(6x + 2) which two expressions are equivalent to 2(5x + 2 + x)? a and c b and d a and d b and c

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c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.