Question

Expand and simplify (x+3)(x-4)

Answer 1

x² - x - 12

Explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

x(x - 4) + 3(x - 4) ← distribute both parenthesis

= x² - 4x + 3x - 12 ← collect like terms

= x² - x - 12