Question

(x^2+4x-4x)^2-9x^2-36x+44=0 Срочно плизззз!!!

Answer 1

x^4+16x^-16x^2-9x^2-36x+44=0
x^4-9x^2-36x+44=0

Answer 2

x^4-9x^2-36x+44=0
x^2=t
t^2-9t-36+44=0
t^2-9t+8=0
t1,2=9плюс-минус корень из(81-32)/2=(9+- 7)/2
t1=(9+7)/2=8
t2=(9-7)/2=1