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Pani-rosa [81]
3 years ago
13

2x + 3 < -9 PLease ANSWER

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
6 0

Answer:

Inequality form: x<-6

Interval Notation: (-∞, -6)

Step-by-step explanation: Isolate the variable by dividing each side by factors that do not contain the variable.

I hope this helps you out!

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Joseph has started completing the square on the equation 3x^2-7x+12=0. He has worked to the point where he has the expression x^
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Starting with <span>3x^2-7x+12=0, we divide all four terms by 3, resulting in the following factored form:
</span><span>
3(</span><span>x^2-[7/3]x+4)=0.
</span><span>
Since 3 cannot equal 0, we can focus on the following:

x^2 - 7/4 x =-4

This completes the assignment (describe Joe's steps up to this point).



If you wish to go further:

Next, take HALF of the coefficient of x and square your result:

(-7/[4][2])^2 = 49/64

Add this to both sides of </span>x^2 - 7/4 x =-4:    <span>x^2 - 7/4x + 49/64 =-4+49/64

Rewrite the left side as (x-7/8)^2 and the right side as 49/64 - 256/64

Simplify the right side by combining these terms:  -207/64

Then x-7/8 = plus or minus (1/8)sqrt(-207)

Next, x = 7/8 plus or minus (1/8)*i*</span>√207, or

          7 plus or minus i*√207
 x = ----------------------------------
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