Answer:
8r^4 - 16r^2
2Step-by-step explanation:
8r^2(r^2-2)
Multiply everything inside the brackets by the term outside of it.
8r^4 - 16r^2
Answer:
Meter – Length
Kilo – Thousand
Liter – Volume
Milli – Thousand
Gram – Mass/Weight
Centi – Hundred
Celsius – Temperature
Deci – Ten
Step-by-step explanation:
Answer:
x is any integer except for -1
Step-by-step explanation:
If you substitute -1 for x, the denominator value would be 0, or undefined.
For this reason, x cannot be -1, which is mathematically known as an extraneous value.
Step-by-step explanation:

![\text{Other solution}\\\\(x^2-y^2)^2\\\\\text{use}\ a^2-b^2=(a-b)(a+b)\\\\= [(x-y)(x+y)]^2\\\\\text{use}\ (ab)^n=a^nb^n\\\\=(x-y)^2(x+y)^2](https://tex.z-dn.net/?f=%5Ctext%7BOther%20solution%7D%5C%5C%5C%5C%28x%5E2-y%5E2%29%5E2%5C%5C%5C%5C%5Ctext%7Buse%7D%5C%20a%5E2-b%5E2%3D%28a-b%29%28a%2Bb%29%5C%5C%5C%5C%3D%20%5B%28x-y%29%28x%2By%29%5D%5E2%5C%5C%5C%5C%5Ctext%7Buse%7D%5C%20%28ab%29%5En%3Da%5Enb%5En%5C%5C%5C%5C%3D%28x-y%29%5E2%28x%2By%29%5E2)
Answer:
A number times five is greater than fifteen. A number less negative seven is less than or equal to five. The difference between a number and seven is less than zero. The sum of a number and seven is greater than or equal to fifteen.