Question 960593

a quadratic in general form: {{{y = ax^2 + bx + c}}}

or {{{ ax^2 + bx + c=0}}}

1)

{{{(3/5)(3x^2-10)=12x}}}

{{{(3/5)(3x^2-10)-12x=0}}}

{{{(9/5)x^2-12x-30/5=0}}}

{{{(9/5)x^2-12x-600}}}


2)

{{{13-3(x+7)^2=0}}}

{{{13-3(x^2+14x+49)=0}}}

{{{13-3x^2-52x-147=0}}}

{{{0=-13+3x^2+52x+147}}}

{{{0=3x^2+52x+134}}} or

{{{3x^2+52x+134=0}}}


3)

{{{x(x+2)=5x^2+1}}}

{{{x^2+2x=5x^2+1}}}

{{{0=5x^2-x^2-2x+1}}}

{{{0=4x^2-2x+1}}}

{{{4x^2-2x+1=0}}}