0000:00:00:00:00Start4Number 4ExplanationThe value of xxx that satisfies 92x−10⋅9x+9>0,x∈R9^{2x} - 10 \cdot 9^x + 9 > 0, x \in \mathbb{R}92x−10⋅9x+9>0,x∈R is ....{x<0 or x<1,x∈R}\{x < 0 \text{ or } x < 1, x \in \mathbb{R}\}{x<0 or x<1,x∈R}{x<0 or x>1,x∈R}\{x < 0 \text{ or } x > 1, x \in \mathbb{R}\}{x<0 or x>1,x∈R}{x>0 or x>1,x∈R}\{x > 0 \text{ or } x > 1, x \in \mathbb{R}\}{x>0 or x>1,x∈R}{0<x<1,x∈R}\{0 < x < 1, x \in \mathbb{R}\}{0<x<1,x∈R}{−1<x<1,x∈R}\{-1 < x < 1, x \in \mathbb{R}\}{−1<x<1,x∈R}
4Number 4ExplanationThe value of xxx that satisfies 92x−10⋅9x+9>0,x∈R9^{2x} - 10 \cdot 9^x + 9 > 0, x \in \mathbb{R}92x−10⋅9x+9>0,x∈R is ....{x<0 or x<1,x∈R}\{x < 0 \text{ or } x < 1, x \in \mathbb{R}\}{x<0 or x<1,x∈R}{x<0 or x>1,x∈R}\{x < 0 \text{ or } x > 1, x \in \mathbb{R}\}{x<0 or x>1,x∈R}{x>0 or x>1,x∈R}\{x > 0 \text{ or } x > 1, x \in \mathbb{R}\}{x>0 or x>1,x∈R}{0<x<1,x∈R}\{0 < x < 1, x \in \mathbb{R}\}{0<x<1,x∈R}{−1<x<1,x∈R}\{-1 < x < 1, x \in \mathbb{R}\}{−1<x<1,x∈R}
