1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oksi-84 [34.3K]
3 years ago
12

(a+b)²-4ab=please help me for my exam​

Mathematics
1 answer:
Colt1911 [192]3 years ago
8 0

Answer:

\huge \boxed{ \boxed{(a  -  {b)}^{2} } }

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • algebra
<h3>tips and formulas:</h3>
  • algebraic identity:(a-b)²=(a+b)²-4ab
<h3>let's solve:</h3>

therefore

using the identity our answer is (a-b)²

let's prove it

  1. (a-b)²:a²-2ab+b²
  2. rewrite -2ab as 2ab-4ab:a²+b²+2ab-4ab
  3. use (a+b)²=a²+2ab+c²:(a+b)²-4ab

therefore

we have also proven that

You might be interested in
Find the solutions to x2 = 20.
aev [14]
A. would your best answer....hope this helps.
6 0
3 years ago
Read 2 more answers
Can I please have help on 3, 4 will mark brainiest thank you.
777dan777 [17]

Answer:

4) Alternate angles

Step-by-step explanation:

Alternate angles are on the opposite corners of the line of the angle, and 10 and 14 are on opposite corners, so that makes them alternate angles. I hope this helped you!

7 0
2 years ago
8.<br> Find the arc length of a central angle of 7pi/3 in a circle whose radius is<br> 3inches
pashok25 [27]

\textit{arc's length}\\\\ s = r\theta ~~ \begin{cases} r=radius\\ \theta =\stackrel{radians}{angle}\\[-0.5em] \hrulefill\\ \theta =\frac{7\pi }{3}\\ r=3 \end{cases}\implies s=(3)(\frac{7\pi }{3})\implies s=7\pi \implies s\approx 21.99~in

4 0
2 years ago
Which stament is true​
yanalaym [24]

Answer:

i think it A

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can someone please help with this?
Mkey [24]

Answer:

true

Step-by-step explanation:

first find the median of the lower and upper half of the data. These values are quartile 1 (Q1) and quartile 3 (Q3). The IQR is the difference between Q3 and Q1.

6 0
3 years ago
Other questions:
  • An ant looks up to the top of a tree with an angle of elevation of 38. if the ant is 43 feet from the base of the tree, what is
    7·2 answers
  • Help me out plz and let you guys know ​
    13·1 answer
  • Morgan plots the point (4,-7) on a coordinate plane. If she reflects the point aacross the y axis, what are the coordinates of t
    11·2 answers
  • Fine the area of the kite.
    11·2 answers
  • 505.45 55% of what amount​
    13·1 answer
  • Question: 2
    5·1 answer
  • Why does this graph have a strong correlation?
    14·2 answers
  • You can solve the equation 3x + 3 = x + 5 by graphing y = 3x + 3 and y = x + 5 and finding their point of intersection. Use the
    12·1 answer
  • Determine whether the relation represents a function <br>16.{(-3,2). (-2, 2), (1,2). (-3.1). (0.3}}​
    8·1 answer
  • True or False? Each point on the perpendicular bisector of a segment is equidistant from the endpoints of the segment.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!