2 years ago

I need help with #6 and #7

Mathematics

2 answers:

Anarel [89]2 years ago

6 0

Answer:

Might need a bit more of a photo.

Step-by-step explanation:

Snowcat [4.5K]2 years ago

4 0

So basically what it is 3x a number +4 is less than -62 Hope this helps I tried to explain as best I could

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2 years ago

A2+5a+6=0 <img src="https://tex.z-dn.net/?f=%20%7Ba%7D%5E%7B2%7D%20%20%2B%205a%20%2B%206%20%3D%200" id="TexFormula1" title="

Katarina [22]

we are given

$a^2+5a+6=0$

we can use factoring formula

$a^2-(m+n)a+mn=(a-m)(a-n)$

we can compare

and we get

$m+n=-5$

$mn=6$

now, we can solve for m and n

and we get

$m=-3 , n=-2$

now, we can use formula

and we get

$a^2+5a+6=(a+3)(a+2)$

now, we can set it equal to 0

$a^2+5a+6=(a+3)(a+2)=0$

$(a+3)=0$

$a=-3$

$a+2=0$

$a=-2$

so, we will get

$a=-2,a=-3$ .............Answer

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2 years ago

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3 years ago

I need help with #6 and #7​

I need help with #6 and #7