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Mathematics 19 Online
OpenStudy (anonymous):

Which of the following pairs of terms are like terms? 2x and x 2yz and 3y x and x2 x2 and 6x3

jimthompson5910 (jim_thompson5910):

2x and x are like terms as they have the same number and types of variables (with the same exponent)

OpenStudy (anonymous):

It confused me because there is 2x and x and there is also x and 2x

jimthompson5910 (jim_thompson5910):

well x and x2 (which I'm assuming is x^2) are NOT like terms because they have differing exponents.

OpenStudy (anonymous):

-4x - 8 over -4?

jimthompson5910 (jim_thompson5910):

(-4x - 8)/(-4) (-4x)/(-4) - (8)/(-4) x + 2 So it simplifies to x+2

OpenStudy (anonymous):

Thanks man

jimthompson5910 (jim_thompson5910):

sure thing

OpenStudy (anonymous):

I got one more if you dont mind 3x-21 over 3?

jimthompson5910 (jim_thompson5910):

(3x - 21)/3 (3x)/3 - (21)/3 x - 7 So the answer is x - 7

OpenStudy (anonymous):

You deserve like 5 medals thanks

jimthompson5910 (jim_thompson5910):

yw

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