3 years ago

Re-write the quadratic function below in Standard Form y = -9(x - 1)(x + 2)

Mathematics

2 answers:

Feliz [49]3 years ago

6 0

Answer:

-9x^2 - 9x + 18

Step-by-step explanation:

-9 • (x - 1) • (x + 2)

-9x + 9 • (x + 2)

-9x^2 -18x + 9x + 18

-9x^2 - 9x + 18

Inga [223]3 years ago

4 0

Answer:

y = - 9x² - 9x + 18

Step-by-step explanation:

y = - 9(x - 1)(x + 2) ← expand factors using FOIL

= - 9(x² + x - 2) ← distribute parenthesis by - 9

y = - 9x² - 9x + 18 ← in standard form

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