factorise (5x-1/x)²+5(5x-1/x)+6
Answers
Answered by
21
let 5x-1/x =y
A/q
y^2+5y+6
y^2+3y+2y+6
y (y+3) 2 (y+3)
(y+3) (y+2)
put the value of y
(5x-1/x+3) (5x-1/x+2)
(5x^2+2x/x) (5x^2+x/x)
(5x+2) (5x+1)
25x^2+15x+2
A/q
y^2+5y+6
y^2+3y+2y+6
y (y+3) 2 (y+3)
(y+3) (y+2)
put the value of y
(5x-1/x+3) (5x-1/x+2)
(5x^2+2x/x) (5x^2+x/x)
(5x+2) (5x+1)
25x^2+15x+2
Answered by
4
Answer:
25x^2+15x+2
Step-by-step explanation:
let 5x-1/x =y
A/q
y^2+5y+6
y^2+3y+2y+6
y (y+3) 2 (y+3)
(y+3) (y+2)
put the value of y
(5x-1/x+3) (5x-1/x+2)
(5x^2+2x/x) (5x^2+x/x)
(5x+2) (5x+1)
25x^2+15x+2
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