Question

a - b = 8 and ab = 48, then a2 + b2 = ?
a) 64
b) 16​

Answer 1

Answer:

a^2+b^2 = 160

Step-by-step explanation:

(a-b)^2 =( 8)^2

a^2+b^2-2ab =64

a^2+b^2 -2(48)= 64

a^2+ b^2= 64+96

= 160

Answer 2

Question:-

a-b= 8 -(1)

ab= 48 -(2)

To find :-

a²+b²

Solution:-

Using equation -(1)and -(2), we get:-

(a-b)²= a² - 2ab +b²

⟹(8)²= a²-2(48)+b²

⟹64=a²- 96+b²

⟹a²+b²= 64+96

⟹a²+b²= 160