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vinrar Group TitleBest ResponseYou've already chosen the best response.1
simplify the equation into its factors one factor being x1 and find other factors then write down the domain of the factors, and you'll see the range is positive in certain domain that's the answer
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
factorise it and find zeros and use tabe
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
table method not tabe
 2 years ago

strawberry_militia Group TitleBest ResponseYou've already chosen the best response.0
@sauravshakya what is the table method?
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
table method: sit down at the table with pencil and paper :)
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
I will do for easy one ok suppose dw:1344005362435:dw
 2 years ago

nickhouraney Group TitleBest ResponseYou've already chosen the best response.0
can you find the zeros then use synthetic division to reduce it to a smaller factor?
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
here dw:1344005426187:dw
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
can you use calculus?
 2 years ago

strawberry_militia Group TitleBest ResponseYou've already chosen the best response.0
no
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
x^4 + .... has the shapedw:1344005576425:dw knowing the min and max parts would be useful
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
dw:1344005474076:dw now using table dw:1344005508829:dw
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
so from the table we getdw:1344005614786:dw
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
got it @strawberry_militia
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
use this similar method to solve your question @strawberry_militia
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
well, a quick trial and error gives me one zero: f(0) = 6 f(1) = 0
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
that should reduce it to a cubic
 2 years ago

strawberry_militia Group TitleBest ResponseYou've already chosen the best response.0
I have found the factors.
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
then plot them on a number line and take test point between the zeros to determine signage
 2 years ago

vinrar Group TitleBest ResponseYou've already chosen the best response.1
write down the factors in coordinates form like if the four factors are a,b,c,d and a<b<c<d then write it as (infinity,a) (a,b) (b,c) and (c,d)
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
to inf and +inf should be positive just by the nature of the poly
 2 years ago

vinrar Group TitleBest ResponseYou've already chosen the best response.1
and (d,infinity) then substitute a value in between (infinity ,a) and check it is positive or not similiarly do for (a,b) (b,c) and (c,d) and (d,infinity)
 2 years ago

vinrar Group TitleBest ResponseYou've already chosen the best response.1
so when you get a positive value..that is your required range
 2 years ago

strawberry_militia Group TitleBest ResponseYou've already chosen the best response.0
I will try it out. thanks for all your responses.
 2 years ago
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