makiahstlouis43 makiahstlouis43

20-10-2021
Mathematics

contestada

Please help. I need all of them answered. I will give extra point and brainiest to best answer.

Please help I need all of them answered I will give extra point and brainiest to best answer class=

Respuesta :

mhanifa mhanifa

20-10-2021

Answer:

See below

Step-by-step explanation:

Open the parenthesis:

#1

y = (x - 7)(x + 2) = x² + 2x - 7x - 14 = x² - 5x - 14

#2

y = 4(x + 5)(x - 1) = 4(x² - x + 5x - 5) = 4(x² + 4x - 5) = 4x² + 16x - 20

#3

y = - 2(x + 1)(x - 2) = -2(x² - 2x + x - 2) = -2(x² - x - 2) = -2x² + 2x + 4

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