Question

what is the value of x²+y²+xy upon x²-y²when x=16 and y is equal to 5​

Answer 1

Step-by-step explanation:

HERE IS YOUR ANSWER...

USED (A+B)² AND A²-B²=(A+B)(A-B) FORMULA TO MQKE CALCULATION EASY

Answer 2

Answer:

Given: x=16; y=5

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

Therefore.

x²+y²+xy upon x²-y²

can be written as

(x+y)² upon x²-y²

(16+5)² upon 16²-5²

21² upon 256-15

441 upon 241 Ans

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