Question

if a+b=4,ab=3 find i)a2+b2 ii)(a+b)3

Answer 1

Answer:

i)16 ii)192

Step-by-step explanation:

my name is om

Answer 2

Answer:

Step-by-step explanation:

i) a2 + b2

Simplify the binomial

(a + b)2

Substitute the given a + b = 4

(4)2

Perform the operation

(4)2 = 16

Therefore

a2 + b2 = 16 if a + b = 4

ii) (a+b)3

Since a+b = 4 substitute it to the given

(a+b)3

(4)3

64