Answer: tenths
Step-by-step explanation:
The complete equation is x^2 - 4x + (-2) = (-2)^2
<h3>How to complete the equation?</h3>
The equation is given as:
x^2 - 4x + __ = (__)^2
_____________________________
Take the coefficient of x
k = -4
Divide by 2
k/2 = -4/2
k/2 = -2
Square both sides
(k/2)^2 = (-2)^2
_____________________________
Add the result of the above computation to both sides of x^2 - 4x + __ = (__)^2
So, we have:
x^2 - 4x + (-2) = (-2)^2
Hence, the complete equation is x^2 - 4x + (-2) = (-2)^2
Read more about completing the square at:
brainly.com/question/16483306
#SPJ1
Answer:
8-d , 9-c ,and i cant see 10
Step-by-step explanation:
this is just what i know off of what i've learned
Answer:
3
Step-by-step explanation:
5*3 is 15.
Answer:
3x^2+x-2
Step-by-step explanation:
I assumed you mean the standard form of this equation, which would require you to use FOIL.
First: x*3x=3x^2
Outside: x*-2=-2x
Inside: 3x*1=3x
Last: 1*-2=-2
After combining like terms you come to the equation y=3x^2+x-2