若（x2+y2）（x2+y2﹣1）=12，则x2+y2=_1．

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若（x²+y²）（x²+y²﹣1）=12，则x²+y²=____．

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Good books are like wise friends. They support you to walk forward, and help you understand the world. TIME listed three best books of 2014 for teens. Have you read all of them?

Names of Books	Writers	Stories
This One Summer	Jillian Tamaki & Mariko Tamki, Canada	Every summer, Rose goes with her parents to a lake house. It’s their relaxing time. But this summer is different. Rose’s parents keep fighting. Rose meets a local teen. But later he is caught up in something bad. It’s really a summer of sorrow（悲伤）and growing up.
The Fourteenth Goldfish	Jennifer L. Holm, US	Ellie has never liked change. She misses everything in the past, especially her dearly dead goldfish. Then one day a strange boy who looks like Ellie’s grandfather shows up. He’s always obsessed（着迷的）with immortality（永生）. Has he finally found the secret to immortality with Ellie?
Absolutely Almost （完全几乎）	Lisa Graff, US	Albie has always been an “almost”. He’s almost good at everything. In fact, Albie has a long list of the things he’s not very good at. But when Albie meets Calista, she helps him work out all of the things he is not good at. What will happen to this “almost” boy?

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