Question

a2+b2= 34, and ab - 10 find value of 2 (a + b)2 + (a - b) 2
​

Answer 1

Answer:

Step-by-step explanation:

(a+b)²=a²+b²+2ab

=34+2(-10)

=34-20

(a+b)²=14

(a-b)²=a²+b²-2ab

=34-2(-10)

=34+20

(a-b)²=54

2(a+b)²+(a-b)²

2(14)+54

28+54

2(a+b)²+(a-b)²=82