lilvinmath lilvinmath

08-09-2019
Mathematics

contestada

Simplify...Urgent pls

SimplifyUrgent pls class=

Respuesta :

08-09-2019

Hey!
The answer is:
-x^2+18x-9

Answer Link

Аноним Аноним

08-09-2019

Answer:

-x^2 + 18x - 9.

Step-by-step explanation:

(x + 3)^2 - 2(x - 3)^2

= x^2 + 6x + 9 - 2(x^2 - 6x + 9)

= x^2 + 6x + 9 - 2x^2 + 12x - 18

= -x^2 + 18x - 9.

Answer Link

Otras preguntas

t + 3t - 7 = 4t - 7???

can someone solve this 9|x+8|+10 <55?

If I round 160,656 to the nearest ten thousand

How would I be able to find the 6th term in the expansion (x + y)7.

A park has a circular are for a fountain that has a circumference of about 16 feet. What is the radius of the circular area? Round to the nearest tenth.

Choose a number between 61 and 107 that is a multiple of 4,5, and 10

t + 3t - 7 = 4t - 7???

Jackie made 28$ babysitting last week . her brother John made only 86% as much as she did. How much did john make

I need yo solve y on this problem.4x - 5 = 7 + 4y

D= 5/6 (F+G)..........solve for F. What is the solution?Sorry, I'm really bad at algebra, and I was just wondering if anybody could help me.