Question

a + b = 3 and ab = 2 the value of a² - b² is (a) +- (b) +- 1 (d) 4​

Answer 1

Answer:

c option is not seen

Step-by-step explanation:

please write the c option first

Answer 2

Answer:

answer is 3

Step-by-step explanation:

a+b= 3

b= 3-a

ab= 2

putting the value of b

a(3-a) = 2

3a-a²= 2

a²-3a +2= 0

a²-2a-a+2=0

a(and) -(a-2)

(a-2) (a-1)

a= 2 or a= 1 [you can take any value ]

a+b= 3

b= 3-2= 1

a²-b²= (a+b) (a-b) [given a + b = 3]

= 3(2-1)

= 3