X6+26x3-27 factorise
Answers
Answered by
15
if x3 = a
then, a2 + 26a - 27 = (a - 27)(a + 1)
by substituting a = x3
then, (a - 27)(a + 1) = (x3 - 27)(x3 + 1)
then, a2 + 26a - 27 = (a - 27)(a + 1)
by substituting a = x3
then, (a - 27)(a + 1) = (x3 - 27)(x3 + 1)
Answered by
2
I'm giving the ans as it is not visible ☝️
Answer:
(x-3) (X2+3x+9) (x+1) (X2-x+1)
Attachments:
Similar questions