algebra

if 2x-3x(x+4)=-5 then x=?

Answers
Expand the brackets: 2x-3x^2-12x=-5 This gives you3x^2+10x-5=0 and then you use the quadratic formula in order to find x :-)
marias
04 January 2019
x= −5/3 + −2/3 Γ10 or −5/3 + 2/3 Γ10Γ = square rootYou need to expand, simplify then use the quadratic equation.
bmsharpie
09 January 2019
simplify the equation as:2x-3x^2-12x+5=0multiply the whole equation with -13x^2-2x+12x_5=03x^2+10x-5=0use the quadratic formula and solve it
navya
15 March 2019
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