24.9k views
2 votes
Find the value of a² + b² , when a+ b = 8 and ab = 12

User Rossiar
by
8.1k points

2 Answers

5 votes

Answer:

Here,

a2 +b2=(a+b)


a {}^(2) + b {}^(2) = (a + b) {}^(2) - 2abso,


(8) {}^(2) - 2 * 12


64 - 2 * 12


40

Explanation:

So,

Therefore,


a {}^(2) + b {}^(2) = 40

I'm not sure if this is correct or not, but this the way I learned..

User Gusridd
by
7.5k points
5 votes

Answer:

Explanation:

6+2=8

6*2=12


6^(2) +
2^(2)= 36+4=40

User Railwayparade
by
7.9k points

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