1.

The value of x satisfying the equation 4x - 5(2x) + 4 = 0 are1. 0 and 22. 0 and -23. 2 and -24. None of the above

Answer» Correct Answer - Option 1 : 0 and 2

Given ; 

4- 5(2x) + 4 =  0

Calculation

(2x)- 5(2x) + 4 = 0 

Let, 2= y

⇒ y- 5y + 4 = 0

⇒ (y - 1) (y - 4) = 0

⇒ y = 1, 4 

⇒ 2= 1 and 2x = 4

⇒ 2x = 20 and 2= 22

∴ The required answer is x = 0, x = 2



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