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zysi [14]
4 years ago
12

If x-y=10 and x+y=20 what is the answer for x^2-y^2?

Mathematics
1 answer:
Minchanka [31]4 years ago
6 0
200 because 15 - 5 is 10 and 15+5 is 20. so 15 squared is 225 and 5 squared is 25 and 225-25 is 200
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Step-by-step explanation:

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25     -2.5              6.25

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50   22.5          506.25

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sum     0             965.5

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3 years ago
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Answer:

Step-by-step explanation:

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