alurlay2018 alurlay2018

29-05-2020
Mathematics

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Rewrite y = -(x + 2)2 – 5 in standard form.

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jimrgrant1 jimrgrant1

29-05-2020

Answer:

y = - x² - 4x - 9

Step-by-step explanation:

Given

y = - (x + 2)² - 5 ← expand (x + 2)² using FOIL

= - (x² + 4x + 4) - 5 ← distribute parenthesis by - 1

= - x² - 4x - 4 - 5 ← collect like terms

= - x² - 4x - 9 ← in standard form

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