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Question

Simplify : 1x2+2x1=6x

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Solution

1x2+2x1=6x

x1+2(x2)(x1)(x2)=6x

3x5x23x+2=6x

3x25x=6x218x+12

3x213x+12=0

We have a formula for solving quadratic equation ax2+bx+c=0 is

x=b±b24ac2a


x=13±1694(12)(3)2(3)

x=13±56

x=3 or x=43.

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