If you are adding variables, say x + 2x, would you also add the variables, to make it squared instead of just another x?

Guest Mar 2, 2017

No.......this used to confuse me, too....


The power [exponent] on the variables remains the same.....thus


1x + 2x   = 3x


It's when we are multiplying that the powers change.....thus


1x * 2x   =  [1 *2] * [x * x ]   = 2x^2



cool cool cool

CPhill  Mar 2, 2017

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