X^3+8
= x^3+2^3
<span>a^3 + b^3 = (a + b)(a^2 – ab + b^2)</span>
so
x^3+8
= x^3+2^3
= (x+2)(x^2-2x+2^2)
= (x+2)(x^2-2x+4)
Answer:
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Step-by-step explanation:
1206 is right answer
To start, we know that an isosceles trapezoid means that the length of P to Q is equal to the length of S to R. Therefore, taking that P is at (0,0), we can say that the distance formula from P to Q is equal to the distance formula from R to S. Our formulas are then 
if we take that g is the x value for R and b is the y value for R, seeing that Q and R are on the same Y value. Therefore, if we square both sides, we figure out that a²=(g-c)² and a=√(g-c)², so a is either equal to g-c or c-g. As the x value of R is clearly lower than the X value of S, and a is positive, we can take that a=c-g. Thus, because we want to solve for g, or the x value of R, we can add g to both sides to get g+a=c. Then, we can subtract a from both sides to get g=c-a, so you can put a as your answer.
Feel free to ask further questions, and Happy Holidays!
The answer is x=4
12/18 = x/6
12/18= 4/6
2x-10=44+8x
Subtract 2x from both sides
-10=44+6x
Subtract 44 from both sides
-54=6x
Divide 6 on both sides
Final Answer: x= -9
