Question

please help me with Algebra 1

Answer 1

1. What is the simplified form of the picture below?
a. x3 – 3x2 + 9x – 27
b. (x2 + 9)(x2 – 9)
c. x3 + 3x2 + 9x + 27
d. x3 + 3x2 – 9x – 27

Answer 2

a^2-b^2= (a+b)(a-b)

Answer 3

factorise x^4-81 using the above identity

Answer 4

I still do not understand. I suck at algebra lol

Answer 5

What is \[(x^2)^2\] ?

Answer 6

umm x^4
?

Answer 7

What is square root of 81?

Answer 8

9?

Answer 9

So x^4-81=(x^2)^2-9^2
Then factorise this

Answer 10

is it c?