Math, asked by suyapspk, 1 year ago

please tell this answer I have test tomorrow

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Answers

Answered by pratyushraman37
2
It's
11*11-2*2
=121-4
=117
Answered by sudipmohajon
0
given,
a+b=9
ab=-22
so,a^2-b^2
=(a-b)^2+2ab
here,
(a-b)^2=(a+b)^2-4ab
=9^2-4×(-22)
=81+88
=169
so,it will be,
=169+2×(-22)
=169-44
=125
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