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If y+z=4 and yz=3 then find y³+z³=?
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If y+z=4 and yz=3 then find y³+z³=?
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May 3, 2022
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If y+z=4 and yz=3 then find y³+z³=?
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Hamza Waleed
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Answer is 28
y+z=4 => y=4-z
yz=3 => (4-z)z=3
=> z^2-4z+3=0
=> z=1 y=3 OR z=3 y=1
=>y^3 + z^3 =3^3+1=28
Nicolas Castellanos
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May 8, 2022
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Nicolas Castellanos
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