Question 12265
how can you get an answer like 40=5 and see that as a reasonable answer? "40 equals 5"...40 does not equal 5, it equals 40. 40 equalling 5 is nonsense as is -10=5.


Solution:
{{{10x - x^2 = 3x - 10}}}
{{{10x = x^2 + 3x - 10}}}
{{{0 = x^2 + 3x -10x - 10}}}
or
{{{x^2 + 3x -10x - 10 = 0}}}
{{{x^2 - 7x - 10 = 0}}}


you have a quadratic. You need to learn how to solve quadratics: it is a large part of maths courses.


trying to factorise this...you cannot. So you need the quadratic formula. Are you sure the question is correct? not +10 perhaps?


jon.