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Is sin2xsinx-cosx = -(3root3)/2 true for 7pi/6? Explain.

I am not sure how to solve this.

x2-9y2-4x-18y=14

Both number twos are squared. I know the answer is 12(x-4)2+5. the number 2 is squared. can you show me how to work out please .thank you

Solve by completing the square. The Number two after the X is squared. I know the answer is x=-4 or X=5/2 could you please show how to get that.

So it would be 3x*2x+xy   -2x for the two boxes that are x*x

What is the growth, also could you tell me a way to find the growth with similar problems?

What is the growth , also could you tell me a way to figure out the growth for problems like this?

What is the growth for the equation?  Also could you tell me a way that could help me find the growth for the equation?

solve system by elimination

solve by elimination

I am suppose to solve for x. I know the answer is x=0, but I am having problems algebraically solving. Do get the exponents on one side and then get rid of the exponents?

I am in 7th grade and I just learned how to solve equations. I am absolutely stumped. I need help sand I forgot my book in my locker.

hi im steven and i need some help on algebra 1 please thanks

need help so I may assist my daughter with her homework

hello i need help to solve 4^x=3^x+1 i can't find out how to do it i know that i have to use LOG but how??? could you help me step by step?? Jakob

8x²-2x-1