SOLUTION: Pls help! If you can answer either one of them, I am so appreciated. 1.(x-2)(x+3)^2 / x^4-13x^2+36. 2. If polynomial p(x)=2x^3 -3x^2-10 has exactly one real zero r, -1<=r<=1, w

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Pls help! If you can answer either one of them, I am so appreciated. 1.(x-2)(x+3)^2 / x^4-13x^2+36. 2. If polynomial p(x)=2x^3 -3x^2-10 has exactly one real zero r, -1<=r<=1, w      Log On


   

Question 376075: Pls help! If you can answer either one of them, I am so appreciated.
1.(x-2)(x+3)^2 / x^4-13x^2+36.
2. If polynomial p(x)=2x^3 -3x^2-10 has exactly one real zero r, -1<=r<=1, which following is true: A. -1<0 B. 0<1 or C.other answer?
3. what is a portion of graph of y= y|-|-x|| ? graph it.
4. what's X if 3x^2-2+7=0 then (x- 1/3)^2= ?
5. If y=b^x and b>1, which one is true: A log y b=x. B. log b x=y. C. other answer.
6. The radian measure of angle containing x degree is: A.Pi x/180 B. Pi x/ 180. C. other answer
7.If f(x)= x^2, when x>0 and c>1, then f(x^c)= ?
8 2log10x-log10y=?
9.for X# 0, if f(x)3x^2 and g(x)=1/2, then f(g(x))= ?
10 3+i/2-i = ?
11. If cotx^0=1, then x=?
12. Y=x+1 and x.y=2 so what x?
13. where can you defined tan X=?
14. If f(x)=3-2x and f^-1 denotes the inverse of f, then f^-1(o) is ?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
12. Y=x+1 and x.y=2 so what x?
1.x%2Ay=2
2.y=x%2B1
From eq. 1,
y=2%2Fx
Substitute into eq. 2,
2%2Fx=x%2B1
2=x%5E2%2Bx
x%5E2%2Bx-2=0
%28x%2B2%29%28x-1%29=0
Two solutions:
x%2B2=0
x=-2
Then from eq. 2,
y=-2%2B1
y=-1
.
.
.
x-1=0
x=1
Then from eq. 2,
y=1%2B1
y=2
.
.

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