QUES2.b) Find the perimeter of 2p the garden O4x+4 0 4x-3 4x=3 4x+5
Answers
Answered by
0
Answer:
-i root 10
Step-by-step explanation:
The equation 4x
5
+4x
3
=360x be reduced to 4x(x
4
+x
2
−360)=0
So, x
4
+x
2
−360=0
Assume x
4
=u
2
, 4x
2
=u
Then u
2
+u−360=0
On factoring we get,
(u−9)(u+10)=0
So, u=9,u=−10
x
2
=9,x
2
=−10
x=3,x=−i
10
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