Question

Express as a trinomial
(x-9)(x+4)

Answer 1

x×(x+4)-9 (x+4)

x2+4x-9x-36

x2-5x-36

Explanation:

hope this answer will you support

Answer 2

x² - 5x - 36

Explanation:

Use FOIL (First, Outside, Inside, Last) to solve. x times x is x², so that is the first term of our trinomial. The outside terms are x times 4, or 4x. The inside terms are -9 and x, so -9x. The last terms are -9 times 4, or -36. We can add the like terms of 4x and -9x to get -5x. So, your trinomial is x² - 5x - 36.