The sum of 4b squared + 5bc, -2b squared -2z square and 2 bc+ 4c squared
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Step-by-step explanation:
{° take as square for easy}
(4b°+5bc)+(-2b°-2z°)+(2bc+4c°)
4b°+5bc-2b°-2z°+2bc+4c°
2b°+7bc-2z°+4c° is the answer
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