Visually impaired math text interpretations:
- A product that contains 2 factors; the first factor of the product is equal to a sum that comprises 2 terms; the first term of the sum is equal to x; the second term of the sum is equal to negative two; the second factor of the product is a sum comprising 2 terms; the first term of the sum is x; the second term of the sum is negative seven;
- open square bracket x plus negative two close square bracket multiplied by opening brace x plus negative seven closing brace;