Substitute 2633

I think the number is when you substitute it in the expression (x-2). (2x - 1), you get zero. What number can it be?

Correct answer:

x1 =  2
x2 =  0.5

Step-by-step explanation:

(x2).(2x1)=0  2x25x+2=0  a=2;b=5;c=2 D=b24ac=52422=9 D>0  x1,2=2ab±D=45±9 x1,2=45±3 x1,2=1.25±0.75 x1=2 x2=0.5   Factored form of the equation:  2(x2)(x0.5)=0 



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