2x^2 -5x/3 -7 =0

solve by factoring,, not quadratic equation.. i tried diamond method and it doesnt work

Printable View

- Aug 2nd 2010, 04:46 AMaeroflixsolve by factoring
2x^2 -5x/3 -7 =0

solve by factoring,, not quadratic equation.. i tried diamond method and it doesnt work - Aug 2nd 2010, 05:16 AMSoroban
Hello, aeroflix!

Quote:

Solve by factoring: .$\displaystyle 2x^2 -\frac{5}{3}x -7 \:=\;0$

Multiply by 3:

. . $\displaystyle 3\bigg(2x^2-\frac{5}{3}x - 7 \:=\:0\bigg) \quad\Rightarrow\quad 6x^2 - 5x - 21 \;=\;0$

Got it?