Question

ANSWER FAST PLEASE
algebraic identities​

Answer 1

Answer:

${x }^{2} + {y}^{2} = {(x + y)}^{2} -2xy$

Here is your answer......

XY=16 .........(1)

x+y=9.........(2)

squaring on both sides, we get

(x+y)^2=(9)^2

=> x^2 + 2xy + y^2=81

=>x^2+y^2 = 81 - 2xy

=> x^2 + y^2 = 81 - 2 * 16

=>x^2+y^2=81 - 32

=> x^2+y^2=49

Answer 2

Answer:

113 is the answer ..

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