Question

7
If a + b = 4 and ab = -12, find (i) a - b (ii) a2 - b2​

Answer 1

Step-by-step explanation:

(i) a - b = √(a+b)²-4ab

= √16-4(-12) = √64

a - b = 8

(ii) (a+b)(a-b) = 4×8

a² - b² = 32

Answer 2

Answer:

value of 6 and value of b is -2

Step-by-step explanation:

or may be value ia is -2 and value of b is 6

thank put this a and b question and solve it