Math, asked by rajyadav2883, 1 month ago

7. If a + b = 10 and a - b = 2, find the value of 2a^2+ 2b^2?

Answers

Answered by sowmitra

2

Answer:

80

Step-by-step explanation:

a+b= 10

a-b=2

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

2(10) 2(2)

20×4

80

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