Use the identity (x + a) (x + b) = x2 + (a + b) x + ab to find the following products. (x + 3) (x + 7)

Use the identity (x + a) (x + b) = x2 + (a + b) x + ab to find the following products.

(x + 3) (x + 7)

 

[kvishal9956]

Here, a = 3 and b = 7. Substituting these values into the identity, we get:

(x + 3)(x + 7) = x^2 + (3 + 7)x + (3 * 7) = x^2 + 10x + 21

Therefore, the product of (x + 3)(x + 7) is x^2 + 10x + 21.