# x squared minus 3x plus 4 equals 0

x squared minus 3x plus 4 equals 0

## (3/2)+(7^1/2)i

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The quadratic xxxxxxx is xxxxxxx xxxx the xxxxxxx xxxxxxxxx xxxxxxxx (below) xx xxxxxxxxxx xxx square.

The xxxxxxx quadratic equation...

xxxx + bx x c x x

has xxxxxxxx

xxxxxxxxxxxx xx in the attachment

and xxxx xxx example xxxxx the link

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

xx x have xxx doubts u can xxxxxxx xx

my xxxx id xx xxxxxxxxxxxxxxxxxxxx

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xxx **xxxxxxxxx formula** xx xxxxxxx xxxx the xxxxxxx quadratic equation (below) xx xxxxxxxxxx the square.

xxx xxxxxxx quadratic equation...

*xx*² x *bx* + *c* x 0

xxx xxxxxxxx

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## solution:

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x² - xx + 4 = x

xxxxx xxxxxxx

xxxx 3x x x = x² x 2*(3/2)*x x xxxxxxx x (3/2)² + 4

x xxxxxxxxx - xxx + 16/4 x (x-3/2)² + xxx

xxxx the xxxxxxxx is xxxxxxxxxx to xxxxxxxxx x xxx x 0

xxx we xxxxxxxx xxxx xxxx is xxxxxxxxxx xxxxxxx xxxxxxxxx >x x xxx xxx x

xxxx (x-3/2)² x 7/4 >= xxx for xxx x ( xxxx xxxxxxxxx + xxx is xxxxx xxxx )

xxxx xxxx xxxxxxxx has no solution in x ( xxx xx xxxxxx

second method:

xxxxx = b² - xxx x (-3)² x xxxxx

= x - xx x xx

xxxxx xx xxxxxxxx thus xxx xxxxxxxx has no solutions in R