Mathematics: What number must be added to the expression below to complete the square? x^2 - x a. 1/2 b. -1/4 c. -1/2 d. 1/4

6 sq.units. ( option C)Hope this helps...Good luck on your assignment......

What number must be added to the expression below

Ответ:

angtrevv

11.01.2022

Mathematics

D. 1/4

Explanation:

a perfect square is written in the form

(x+a)^2 = x^2 + 2ax +a^2 (1)

In our problem, we have this perfect square:

x^2 - x + C (2)

with C being unknown. However, by comparing (1) and (2), we know that

2a=-1

So, we find

$a=-\frac{1}{2}$

and therefore, the missing term must be

$a^2 = \frac{1}{4}$

so the complete square is

$x^2 -x +\frac{1}{4}$

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Ответ:

Dericktopsom

01.11.2021

Mathematics

6 sq.units. ( option C)

$solution \\ base = 6 \\ height = 2 \\ area \: of \: triangle = \frac{1}{2} \times b \times h \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{1}{2} \times 6 \times 2 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 6 \: sq.units$

Hope this helps...

Good luck on your assignment...

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What number must be added to the expression below to complete the square?

x^2 - x

a. 1/2
b. -1/4
c. -1/2
d. 1/4

Ответ:

Ответ:

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