(x - 2)(x + 1) = 3x - 2

x=4

Step-by-step explanation:

(x-2)(x+1)=3x-2

x(x+1)-2(x+1)=3x-2

x^2+x-2x-2=3x-2

x^2-x-2=3x-2

x^2=3x+x-2+2

x^2=4x

x^2/x=4

x=4

(x - 2) ( x + 1) = 3x - 2

x² + x - 2x - 2 = 3x - 2

x² + x - 2x - 2 - 3x + 2 = 0

x² - 4x = 0

x ( x - 4 ) = 0

x - 4 = 0/x

x - 4 = 0

x = 4

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step-by-step explanation:

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2