4X & # 178; = 9 x = how much

4X & # 178; = 9 x = how much

2X = 3 or 2x = - 3
X = 3 / 2 or x = - 3 / 2

How much is 42 times the sum of 3:2 and 0:8, plus 17:6?

Finding the number of zeros of y = x & # 178; - 1 / X

If y = 0, then x & # 178; = 1 / X
Draw X & # 178; and 1 / X images
It's obviously an intersection
So the number of zeros is one

What is the number of zeros of F (x) = 2 ^ x + X & # 178; - 2?

The zero point of F (x) = 2 ^ x + X & # - 2 is the root of F (x) = 0
2^x+x²-2=0
That is, 2 ^ x = - X & # 178; + 2
Let Y1 = 2 ^ x, y2 = - X & # 178; + 2
The images of two functions are given respectively. There are two intersections, so there are two roots of F (x) = 0
That is, there are two zeros