Question

a+b=2,a_b=10 find( a×a+b×b),ab

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

given:a+b=2,a-b=10

to find:a*a+b*b,ab

i)a2+b2=a+b*a-b=2*10=20

ii)ab=a+b=2

a=2-b

so

put,a=2-b in equation1

a-b=10

b=-4