Given a = -4, b = -4 and c = -5 work out b² - 2ac

asked Mar 1, 2023 92.6k views

4 votes

Given
a = -4, b = -4 and c = -5
work out
b² - 2ac

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1 vote

⇒Plug in the values given in places and simplify.

$=(-4)^(2) -2(-4)(-5)\\=16-2(20)\\=16-40\\=-24$

-24 is the answer after substitution of the known values.

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7 votes

Answer:

-24

Explanation:

b²-2ac

Benyl answered Mar 5, 2023

by Benyl

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