3. Find the value of x in the following:
a 142 x x x 5 = 20 x 5 x 142
Answers
Answered by
9
Answer:
142× x ×5 =20×5×142
x=20
Answered by
2
Answer:
The values of x are
Step-by-step explanation:
Given : Equation x^4-142x^2+1=0x
4
−142x
2
+1=0
To find : The value of x?
Solution :
Let y=x^2y=x
2
in the given equation x^4-142x^2+1=0x
4
−142x
2
+1=0
So, (x^2)^2-142(x^2)+1=0(x
2
)
2
−142(x
2
)+1=0
y^2-142y+1=0y
2
−142y+1=0
Solve by quadratic formula,
Here, a=1, b=-142 and c=1
Now substitute in y=x^2y=x
2
When
Therefore, the values of x are
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