Question

multiply x^2-2x-5 by x+3​

Answer 1

Step-by-step explanation:

(x + 3)(x² - 2x - 5)

x(x² - 2x - 5) + 3(x² - 2x - 5)

x³ - 2x² - 5x + 3x² - 6x - 15

x³ + x² - 11x - 15

Answer 2

Answer:

$(x + 3)( {x}^{2} - 2x - 5) \\ (x \times {x}^{2} ) + (x \times - 2x) + (x \times - 5) + (3 \times {x}^{2} ) + (3 \times - 2x) + (3 \times - 5) \\ {x}^{3} - {2x}^{2} - 5x + {3x}^{2} - 6x - 15 \\ {x}^{3} - 2 {x}^{2} + 3 {x}^{2} - 5x - 6x - 15 \\ {x}^{3} + {x}^{2} - 11x - 15$