Answer:
x^2-7x+2x-14 or x squared minus seven x plus two x minus fourteen
Step-by-step explanation:
(x+2)*(x-7)= x^2-7x+2x-14
First: x^2
Outer: -7x
Inner: 2x
Last: -14
Answer:
Step-by-step explanation:
![\text{Geometric mean:}\\\\\underbrace{\sqrt[n]{a_1\cdot a_2\cdot a_3\cdot...\cdot a_n}}_n\\\\\sqrt{7\cdot9}=\sqrt{9}\cdot\sqty7=3\sqrt7](https://tex.z-dn.net/?f=%5Ctext%7BGeometric%20mean%3A%7D%5C%5C%5C%5C%5Cunderbrace%7B%5Csqrt%5Bn%5D%7Ba_1%5Ccdot%20a_2%5Ccdot%20a_3%5Ccdot...%5Ccdot%20a_n%7D%7D_n%5C%5C%5C%5C%5Csqrt%7B7%5Ccdot9%7D%3D%5Csqrt%7B9%7D%5Ccdot%5Csqty7%3D3%5Csqrt7)
Answer:
-162
Step-by-step explanation:
23=5-2/3d
2/3d=-18
d= -27
6d= 6* -27
6d= -162
