Equivalent Expressions - written differently – Khan Academy yordam markazi

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Natalye Leake

May 11, 2017 18:16

Have any other teachers seen equivalent expressions written like the following from your text books?

Which expression is equivalent to (x2y)3 * x3?

A. x5y3

B. x6y3

C. x9y3

D. x18y3

This was the first time I have seen a problem written with the number mixed in with the variables. I am more familiar with equations looking like "(2xy)3*3x ". I solved it okay but I wanted to see if other educators had come across questions like this because I may need to find more examples to use within class.

Yangi maqola

Sharhlar: 3

Inger Hohler

May 15, 2017 17:11
0

Sharhlar bilan harakatlar Doimiy havola
Hi Natalye, is this something you've found on Khan Academy, and if so, on which url?
Natalye Leake

May 16, 2017 13:08
0

Sharhlar bilan harakatlar Doimiy havola
Hey Inger,

This was a problem I had encountered on a sample test that my school will be using next year. Myself and the other teachers had never seen a problem written that way and wanted to know if any one else had encountered it because we will need to incorporate this into our lessons and need more resources.
Inger Hohler

May 16, 2017 16:36
0

Sharhlar bilan harakatlar Doimiy havola
That's fine - just checking if it was something we needed to respond to because it concerned KA : )

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Equivalent Expressions - written differently

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Sharhlar: 3

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