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3 years ago

What is the value of x2+9x+20 when x could be -5, -3 or -6

Mathematics

1 answer:

ANTONII [103]3 years ago

3 0

Answer:

Step-by-step explanation:

You should use a ^ to indicate an exponent. x^2 is the same as x².

x² + 9x + 20

Replace the x with (-5).

(-5)² + 9(-5) + 20 = 25-45+20 = 0

Then do the same with x = (-3):

(-3)² + 9(-3) + 20 = 9 - 27 + 20 = 2

You can do x = (-6)

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