3 years ago

Solve x²+5x+6=0 what is this answer

Mathematics

2 answers:

Butoxors [25]3 years ago

7 0

Answer:

x=-2 x=-3

Step-by-step explanation:

x²+5x+6=0

Factor

What 2 numbers multiply to 6 and add to 5

2*3 =6

2+3 =6

(x+2)(x+3) =0

Using the zero product property

x+2 =0 x+3 =0

x=-2 x=-3

Lemur [1.5K]3 years ago

4 0

Answer (there are two solutions):

x = -3
x = -2

I hope this helps!

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Step-by-step explanation:

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3 years ago

Evaluate the expression when a= 4, b= - 2, and c= 7 - -> 5a - 9 (b - c)

ollegr [7]

Answer:

$65$

Step-by-step explanation:

Given the following question:

$5a-9(b-c)$
a = 4
b = 2
c = 7

In order to find the answer, we need to substitute the variables with the numbers given, and then solve using PEMDAS.

$5\times4-9\times(2-7)$
$2-7=-5$
$5\times4-9\times-5$
$5\times4=20$
$20-9\times-5$
$9\times-5=-45$
$20--45$
$20+45=65$
$=65$

Hope this helps.