Question

Product of (a +5)(a - 3) is​

Answer 1

Answer:

(a+5)(a-3)

a2-3a+5a-15

a2+2a-15

Step-by-step explanation:

Answer 2

Step-by-step explanation:

As we know,

$(x + a)(x - b) = {x}^{2} + (a - b)x - ab$

Applying this formula,

$(a + 5)(a - 3) = {a}^{2} + (5 - 3)a - 5 \times 3 \\ = {a}^{2} + 2a - 15$