What are the solutions to the quadratic equation 3(x − 4)2 = 75? x = −9 and x = 1
x = −5 and x = 5
x = −4 and x = 4
x = −1 and x = 9

x=-1 and x=9

Step-by-step explanation:

=

=

=

=

therefore x=9 and x=-1

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

answer by yourhope:

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