Assume f(w) = 4w^2 - 4x - 8 and g(w) = 2w^2 + 3w - 6, find f(w) - g(w).

Answer 1

f(w) - g(w) = 4w² - 4w - 8 - (2w² + 3w - 6) Pretend everything in 2nd term is multiplied by -1 and remove parentheses..

4w² - 4w - 8 - 2w² - 3w + 6. Combine like terms: 2w² - 7w - 2