ayyaanabbass1214 ayyaanabbass1214
  • 08-09-2020
  • Mathematics
contestada

If x+y=10 and x-y=4, find the value of x2+y2

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Аноним Аноним
  • 08-09-2020

Answer:

x+y+x-y=10+4

2x=14

x=7

7-y=4

y=11

put the value x and y of in x^2+y^2

16+121=137

mark it as brainliest

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kusum9a2hhps28
kusum9a2hhps28 kusum9a2hhps28
  • 08-09-2020

Answer:

58

Step-by-step explanation:

x+y=10---1

x-y=4-----2

adding both the terms

we will get x=7

now putt x=7 in equation 1

from there we will get y that is 3

x²+y²

7²+3²

49+9=58 ans

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