Question 311591
2x^2-5x=-7
2X^2-5X+7=0
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
X=(5+-SQRT[-5^2-4*2+7])/2*2
X=(5+-SQRT[25-56])/4
X=(5+-SQRT-31)/4
X=(5+-5.568i)/4
X=5/4+-1.39i ANS.
(1.25+1.39i,1.25-1.39i)