Question

Find all the zeroes of the equation. -3x4+27x2+1200=0 I need to learn how to do it! Just not the answer please

Answer 1

finding the zeroes is the same as solving for X
order of operations
first multiplication
-3*4=-12, 27*2=54
-12+54+1200=0
now add everything else together
The answer would be 1242

Answer 2

I think 4 and 2 are exponents on x

Answer 3

\[-3x^4+27x^2+1200=0\]

Answer 4

try replacing x^2 with u
to transform the equation into:
\[-3u^2+27u+1200=0\]

Answer 5

this is a quadratic equation

Answer 6

use the quadratic formula

Answer 7

you could also simplify the equation before using the formula

Answer 8

divide both sides by -3

Answer 9

Yeah the 4 and 2 are exponents

Answer 10

oh, oops, sorry >.<

Answer 11

Nah you're good! thanks for the help though :)

Answer 12

oh wait never mind, I got it.