Would someone kindly give their help? screencap in comments.
To solve this, you need to remember that when dividing powers of terms with the same base you need to subtract the indices. For example \[\large \frac{w^{6} x^{4}}{w^{2} x^{3}}=w^{(6-2)}x^{(4-3)}=w^{4}x\]
I don't know how to do that :/
\[\large \frac{4x^{3} y^{4}}{-8xy^{2}}=\frac{4}{-8} \times x^{(3-1)}y^{(4-2)}=?\]
This is too complicated for me, can you help me break it down?
Can you subtract 1 from 3, and subtract 2 from 4?
2 and 2 so yes
Correct. And what is 4/-8?
-1/2
yeah, and what isare (3-1) ? , (4-2) ?
yeah you had 2 and 2, so... \[\large \frac{4x^{3} y^{4}}{-8xy^{2}}\\ =\frac{4}{-8} \times x^{(3-1)}y^{(4-2)}\\ =\frac{-1}2x^2y^2\]
I don't get that :( I'm sorry I have a horrible instructor
What part don't you get? You have correctly answered the sections that were broken down for you.
The formatting makes my brain shut down
I don't get it
So the correct choice has -1/2, x^2 and y^2.
4x3y4/8xy2 Reduce the expression by cancelling the common factors. More Steps Factor 4 out of 4x3y4. 4(x3y4)−8xy2 Rewrite the expression. x3y4−2xy2 x3y4−2xy2 Reduce the expression by cancelling the common factors. More Steps Factor x out of x3y4. x(x2y4)−2xy2 Rewrite the expression. x2y4−2y2 x2y4−2y2 Reduce the expression by cancelling the common factors. More Steps Factor y2 out of x2y4. y2(x2y2)−2y2 Rewrite the expression. x2y2/-2 x2y2/-2 Move the negative in front of the fraction. −x2y2/2
Thank you all so much. I get it so much more now.
You're welcome :)
Join our real-time social learning platform and learn together with your friends!