50points........
Plz answer these two questions for 50 points. No useless answer is required. Want the answers of both questions...
Q. 1. Factorise: (x^2+x+8) (x^2+x)+12
Q.2. If x^2 -5x +1 = 0. Find the value of x^2-1/x^2.
Answers
Answered by
6
Answer:
Step-by-step explanation:
2)x^2-5x+1=0
use formula -b+ root of(b^2-4ac)/2a and -b- root of(b^2-4ac)/2a
x=5+root 21/2 or 5-root 21/2
substitute
x=5+root 21/2
x^2=46+10 root 21/4
x^2-1=45+10 root 21/4
ans=45+10 root 21/46+10 root 21
Ritulshekhar1:
i want the answer of 1 . no. too
plz answer
then i will mark your answer as Brainliest
ok
Answered by
3
hope it helps!
mark as brainliest
Attachments:
thanks for the brilliant answer
my pleasure
in the 1st question
plz count and tell me upto how many steps is the answer
the whole is the answer
okk. then
actually, we don't need to find x . there. so i got confused
then u end upto 6th step
it's better then
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