Question

If a+b=8 and a-b=5. Find,
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Answer 1

Answer:

Step-by-step explanation:

Answer 2

Hey mate

$a + b = 8$

$a - b = 5$

$2a = 13$

$a = 13 \div 2 = 6.5$

Put in a+b=8

$6.5 + b = 8$

$b = 2.5$

$a ^{2} + {b}^{2} = {6.5}^{2} + {2.5}^{2}$

$= 42.25 + 6.25 = 52.50$

$ab = 6.5 \times 2.5 \\ = 16.25$

Hope it helps you☺️✌️✌️