2 years ago

Find the area of the figure below (k + 4 ) (K-9)

Mathematics

1 answer:

Salsk061 [2.6K]2 years ago

7 0

Answer:

A = k² - 5k - 36

Step-by-step explanation:

(k + 4)(k - 9) = k² - 9k + 4k - 36 = k² - 5k - 36

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Stella [2.4K]

Answer:

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Step-by-step explanation:

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2 years ago

3[–x + (2 x + 1)] = x – 1

photoshop1234 [79]

Answer:

Step-by-step explanation:

$3[-x + (2 x + 1)] = x -1\\\\\mathrm{Expand\:}3\left(-x+\left(2x+1\right)\right):\quad 3x+3\\3x+3=x-1\\$