3 years ago

X^2-4y-4x+xy in factored form

Mathematics

1 answer:

crimeas [40]3 years ago

5 0

X^2-4y-4x+xy = (x-4) (x+y)

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rosijanka [135]

Answer:

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Step-by-step explanation:

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$\therefore \: y \: \alpha \: \: x \\ \therefore \: y = kx ...(1) \\ plug \: y = 30 \: and \: x = 6 \: in \: eq \: (1)\\ 30 = k \times 6 \\ k = \frac{30}{6} \\ k = 5 \\ plug \: k = 5 \: in \: (1) \\ y = 5x....(2) \: (required \: equation) \\ plug \: x = 12 \: in \: eq \: (2) \\ y = 5 \times 12 \\ \huge \red{ \boxed{y = 60}}$

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