Seudónimo
Seudónimo
03-07-2014
Mathematics
contestada
Solve the quadratic by factoring 2X²-2X-12=0
Respuesta :
konrad509
konrad509
03-07-2014
[tex]2x^2-2x-12=0\\ 2(x^2-x-6)=0\\ 2(x^2-3x+2x-6)=0\\ 2(x(x-3)+2(x-3))=0\\ 2(x+2)(x-3)=0\\ x=-2 \vee x=3[/tex]
Answer Link
Аноним
Аноним
03-07-2014
[tex]2x^2-2x-12=0\\\\2x^2+4x-6x-12=0\\\\2x(x+2)-6(x+2)=0\\\\(x+2)(2x-6)=0\iff x+2=0\ \vee\ 2x-6=0\\\\x=-2\ \vee\ x=3[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 25+ )
Otras preguntas
Please help me with this (i attached photos to cause less confusion) Thanks :) 25 Points!!!
advantage of paicho culture
If x = 3, then 3x – 4 = 5. x = 3 law of detatchment
evaluate this equation
What is spy wear on a desk top computer
Determine the mass of SO₂ that contains 6.075 × 10^26 S atoms.
pls help. Dr. AT is studying the effect playing music has on plant growth. To do this she sets up three greenhouses each growing pea plants. One of the greenho
In which device is chemical energy transformed into electrical energy?
What is the area of this trapezoid? 340 cm² 427.5 cm² 440 cm² 487.5 cm²
Christina knits a scarf for each of her 7 friends. Altogether, the scarfs had a total length of 39.9 ft. if each scarf has the same length. how long was each sc
