Answer:
4.
a) ![4x^4-4x^3-16x^2+16x](https://tex.z-dn.net/?f=4x%5E4-4x%5E3-16x%5E2%2B16x)
b) ![4x^4-4x^3-16x^2+16x](https://tex.z-dn.net/?f=4x%5E4-4x%5E3-16x%5E2%2B16x)
5. Yes
Step-by-step explanation:
The distributive property is:
![(a+b)(c+d)=ac+ad+bc+bd](https://tex.z-dn.net/?f=%28a%2Bb%29%28c%2Bd%29%3Dac%2Bad%2Bbc%2Bbd)
It can be extended to a lot of terms as well.
We will use this to multiply both of the probelms shown.
4 a)
![(4x^2-4x)(x^2-4)=(4x^2)(x^2)-(4)(4x^2)-(4x)(x^2)+(4x)(4)=4x^4-16x^2-4x^3+16x=4x^4-4x^3-16x^2+16x](https://tex.z-dn.net/?f=%284x%5E2-4x%29%28x%5E2-4%29%3D%284x%5E2%29%28x%5E2%29-%284%29%284x%5E2%29-%284x%29%28x%5E2%29%2B%284x%29%284%29%3D4x%5E4-16x%5E2-4x%5E3%2B16x%3D4x%5E4-4x%5E3-16x%5E2%2B16x)
The answer is ![4x^4-4x^3-16x^2+16x](https://tex.z-dn.net/?f=4x%5E4-4x%5E3-16x%5E2%2B16x)
4 b)
![(x^2+x-2)(4x^2-8x)=(x^2)(4x^2)-(8x)(x^2)+(x)(4x^2)-(8x)(x)-(2)(4x^2)+(2)(8x)=4x^4-8x^3+4x^3-8x^2-8x^2+16x=4x^4-4x^3-16x^2+16x](https://tex.z-dn.net/?f=%28x%5E2%2Bx-2%29%284x%5E2-8x%29%3D%28x%5E2%29%284x%5E2%29-%288x%29%28x%5E2%29%2B%28x%29%284x%5E2%29-%288x%29%28x%29-%282%29%284x%5E2%29%2B%282%29%288x%29%3D4x%5E4-8x%5E3%2B4x%5E3-8x%5E2-8x%5E2%2B16x%3D4x%5E4-4x%5E3-16x%5E2%2B16x)
The answer is ![4x^4-4x^3-16x^2+16x](https://tex.z-dn.net/?f=4x%5E4-4x%5E3-16x%5E2%2B16x)
5. Yes
Answer:
18 1/2
Step-by-step explanation:
9.8 is the middle number which is the median
Answer:
x=24 square feet per hour
Step-by-step explanation:
You divide 16 by 2 to get how many tiles that are laid in 1/3 of an hour. Then multiply that by 3 to get how many tiles in one whole hour. The answer should be 24.
Answer:
it's = 0
you have to use the steps of maths