Question

Quadratic Question !!!! Help PLZZ !!!

7x^4−33x^2+26=0
Answers are :
a.) 1.93,1
b.)1.86, –1.86, 1, –1
c.) 3.71, 1
d. 1.93 , - 1.93 ,1,-1

Answer 1

(x^2 -1)(7x^2 -26)
so x=+1,-1
\[x=\pm 1,\pm \sqrt{\frac{ 26 }{ 7 }}\]

Answer 2

sorry i write x=+1 and -1 twice

Answer 3

So does that make it d.) ????

Answer 4

you calculate sqrt(26/7)?

Answer 5

yes d is your answer

Answer 6

Thank you soooo much sir you will be fanned !