Q.2(B) Solve the following. (any 4)
1) Solve the following quadratic equations by factorisation method.
2^x - 2x +1/2 = 0
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Answer:
2x^2-2x+1/2=0
2(2x^2-2x+1/2)=0
4x^2-4x+1=0
4x^2-2x-2x+1=0
2x(2x-1)-1(2x-1)=0
(2x-1)(2x-1)=0
either,2x-1=0 or 2x-1=0
x=1/2. or x=1/2
therefore the value of x is 1/2
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