The factored form comes from breaking each term up x2 = x times x -48 has numerous possibilities for two factors but the to factors that multiply and get -48 while adding to get +13 are +16 and -3 so the answer in factored form is (x + 16) (x -3)
The area of a triangle can be calculated by multiplying the triangle's base by its height, and then dividing the result by . As an algebraic expression, this would be , where is the triangle's base and is the triangle's height. In this case, we know that and . Therefore, the area of this triangle is square units. Hope this helps!