2 years ago

40 POINTS AVAILABLE real answers please

Mathematics

1 answer:

Aleks [24]2 years ago

4 0

Answer:

ABD = 40, CD = 143, X = 43.5, AB = 140, BC = 126

Sorry I'm in a hurry right now so I can't give explanations but I hope this helps!

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Step-by-step explanation:

Given

$x(2x+y+5) - 2(x\²+xy+5) + y(x + y)$

Required

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$x(2x+y+5) - 2(x\²+xy+5) + y(x + y)$

Open brackets

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Collect like terms

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$x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 5x -10 + y\²$

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