Solve 2x2 + 26 = 0 to identify the roots.
0 x 13 x 13
x=-in/13, x= int3
x=-226, x = 2126
x= -2;w/26, x = 2i»/26
RETRY
Intro

x = i * root(13)

or  x = -i * root(13)

Step-by-step explanation:

2x2 + 26 = 0

xx  + 13 = 0

x = i * root(13)

or  x = -i * root(13)

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1