Question

find the value of (a*a)+(b*b) when a+b=0 and ab=(-25)

Answer 1

Answer:

Solution

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Given, a+b=25 and a

2

+b

2

=225

We know that, (a+b)

2

=a

2

+b

2

+2ab ... (i)

By putting the given values in equation (i),

(25)

2

=225+2ab

625=225+2ab

625—225=2ab

400=2ab

400÷2=ab

200=ab

Step-by-step explanation:

So, the value of ab is 200.