2a+4b=60 ab=88 find a^2+4b^2
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I don't know
Step-by-step explanation:
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Answer:
Step-by-step explanation:
2a+4b=60
Dividing by 2 on both sides,
a+2b=30
Squaring on both sides,
(a+2b)^2 = (30)^2
a^2+4b^2+2(2ab) = 900
a^2+4b^2+4(88) = 900
a^2+4b^2 = 900-352
a^2+4b^2 = 548
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