If a²+b²=52, a-b=2 then ab=?
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Answer:
The answer will be 24.
Step-by-step explanation:
We have given;
a - b = 2; (i)
a²+b²=52;
Now, square the equation (i);
(a - b)^2 = (2)^2;
a²+b² - 2ab = 4;
Now, we have given the value of a²+b²;
So, 52 - 2ab = 4;
52 - 4 = 2ab;
ab = 48 / 2;
ab = 24;
That's all.
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