Question

Factor 5x4 - 30x2 - 135.



5(x2+ 9)(x2- 3) ***********
5(x - 3)(x + 3)(x2- 3)
I think it is the one with *******
5(x - 3)(x + 3)(x2+ 3)

Answer 1

no sorry,its the last one \(5(x - 3)(x + 3)(x^2+ 3)\)

Answer 2

\[5(x^4 - 6x^2 - 27) = 5(x^4 - 9x^2 + 3x^2 - 27)\]

Answer 3

I think you can group the terms and factor.

Answer 4

so it is the last one

Answer 5

this is an equation reducible to a quadratic

take 5 as the common factor and then you have

\[5(x^4 - 6x^2 - 27)\]

which can be treated as

\[5((x^2)^2 - 6(x^2) - 27)\]

Answer 6

yes @Shannon20150

Answer 7

will u help me again all of u