Question

3. Evaluate :
(i) (c + 5) (c - 3)​

Answer 1

Answer:

C^2+2c-15

Explanation:

(C+5) (c-3)

C×(c-3)+5×(c-3)

(C^2-3c) +(5c-15)

C^2+2c-15

Answer 2

Solution :-

$(c + 5)(c - 3) = 0$

$c + 5 = 0 \: \: \: and \: \: \: c - 3 = 0$

then

$c = - 5 \: \: and \: 3$