Question

2x(3 - 4x) + (x - 2)(x + 3) = 7x(10 - x) + 12​

Answer 1

Respuesta:

X1= 71/-12+6= 0.0833    X2= 71/-12-6= -11.92

Explicación:

2x(3 - 4x) + (x - 2)(x + 3) = 7x(10 - x) + 12​

6X-8X + (X2+3X - 2X-6) = 70X-7X2+ 12​

-2X+(X2+X-6)=-7X2+70X+12

X2-X-6=7X2+70X+12

X2-7X2-X-70X= 12+6

-6X2-71X= 18

-6X2-71X-18= 0

A= -6  B= -71  C= -18

X= -B+√(-4AC)/2A

X= -(-71)+√(-4(-6)(-18))/2(-6)

X= +71+√(-432)/-12

X1= 71/-12+√36

X1= 71/-12+6= 0.0833

X2= 71/-12-√36

X2= 71/-12-6= -11.92