Question 427469
2X^2+X=10 is the same as 2X^2+X-10=0 this is a quadratic equation.

you can solve this equation by solving for X and you will have 2 solutions

{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}



X= (-1 - sqrt( 1^2-4*2*-10 ))/(2*2) }}} = 2


X= (-1 + sqrt( 1^2-4*2*-10 ))/(2*2) }}} = -5/2


Your solution is:  X= ( -5/2;2)