Question 1150949
{{{ ( 10 + x*1 )*( 16 - 2x ) >=130 }}}
{{{ 160 + 16x - 20x - 2x^2 >= 130 }}}
{{{ -2x^2 - 4x + 160 >= 130 }}}
{{{ -x^2 - 2x + 80 >= 65 }}}
{{{ x^2 + 2x - 80 <= -65 }}} ( reverse the inequality sign )
-----------------------------------
{{{ ( x + 10 )*( x - 8 ) <= -65 }}}
{{{ x }}} has to be a positive whole number and
{{{ x - 8 }}} must be negative
--------------------------------------
{{{ x = 7 }}} does not work
{{{ x = 6 }}} does not work
{{{ x = 5 }}} does not work
{{{ x = 4 }}} does not work
{{{ x = 3 }}} works
{{{ x = 2 }}} works
{{{ x = 1 }}} works
Geta 2nd opinion if needed