Easy Solve

Algebra Level pending

X and Y are real numbers. with X < Y. X+Y= 13 and X^2 + Y^2= 97. What is X^3+Y-4? Hint: X is less than Y


The answer is 69.

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2 solutions

Aiden Turpin
Dec 31, 2014

I wasnt thinking right. X and Y can't be flipped...

Rostam Dana
Dec 30, 2014

if x=4 and y=9 ... 4+9=13 4^2+9^2=16+81=97 .... 4^3+9-4=64+9-4= 69. so 69 is the answer ;)

Yes! Thank you for solving!

Aiden Turpin - 6 years, 5 months ago

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np . just the way i think bro!

Rostam Dana - 6 years, 5 months ago

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are you actuly 11???

Rostam Dana - 6 years, 5 months ago

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@Rostam Dana Yes. I am actually eleven.

Aiden Turpin - 6 years, 5 months ago

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@Aiden Turpin I just study a lot.

Aiden Turpin - 6 years, 5 months ago

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@Aiden Turpin you know. im 12 . i swear to god that i have studied so much that somtimes i had got headpain. lol and also i skiped 2 grades

Rostam Dana - 6 years, 5 months ago

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@Rostam Dana Hi! I am also 12

Anuj Shikarkhane - 6 years, 5 months ago

@Rostam Dana XD I also skipped a grade

Aiden Turpin - 6 years, 5 months ago

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@Aiden Turpin are you serious???

Rostam Dana - 6 years, 5 months ago

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@Rostam Dana Yeah. Im serious.

Aiden Turpin - 6 years, 5 months ago

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@Aiden Turpin cool (now im not alone)

Rostam Dana - 6 years, 5 months ago

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@Rostam Dana Now I know that I'm not alone either. Cool!

Aiden Turpin - 6 years, 5 months ago

@Rostam Dana try out some of my problems!!

Rostam Dana - 6 years, 5 months ago

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