Question

use suitable identities to find the following products : ( x + 8 ) ( x - 10 )​

Answer 1

Answer:

(ii) (x + 8) (x – 10)

Using identity,

[(x + a) (x + b) = x² + (a + b) x + ab]

Here, a = 8 & b = –10

(x + 8) (x – 10)

= x²+{8+(– 10)}x +{8×(– 10)}

= x² + (8 – 10)x – 80

= x² – 2x – 80

Step-by-step explanation:

Answer 2

Answer:

x^2 - 2x - 80

Step-by-step explanation:

(x+8)(x-10)

= (x)(x) + 8x + (-10x) + (-8 x 10)

= x^2 + 8x -10x - 80

= x^2 - 2x - 80