Question 415352
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Hi
x^2 - 7x + 10 = 0      |Note the use of ^   (uppercase 6 on Your keyboard
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{x = (7 +- sqrt( 89 ))/(2) }}}
either leave it in that form or use calculator depending on the instructions.
 x = (7 ± 9.434)/2