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nexus9112 [7]
3 years ago
8

Find the product mentally. [(x + 1)(x - 1)]2

Mathematics
2 answers:
Kaylis [27]3 years ago
7 0

Answer:

x^4 - 2x^2 + 1

Step-by-step explanation:

Delvig [45]3 years ago
6 0
2x^2  - 2 is the answer for this equation, hope this helps you.
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What is the length of the diagonal (d) of the prism? Round to the nearest tenths if necessary.
Mashcka [7]

Answer:

Step-by-step explanation:

z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75 z + 4 = 75

5 0
3 years ago
Team Alpha had one fourth as many people as team Beta. After 6 people quit team Beta and 12 people were transferred to team Alph
gregori [183]
Let "a" and "b" represent the numbers of people on teams Alpha and Beta, respectively. The problem statement tells you
  a = (1/4)b
  b - 6 - 12 = a + 12

The first equation can be rewritten to give an expresion for b:
  b = 4a
This can be substituted into the second equation to get
  4a -18 = a +12
  3a = 30
  a = 10

There were originally 10 people on team Alpha.
6 0
3 years ago
If 3 over 5 equal 24 over a then a equal what
dimaraw [331]
Hihhihihigigoohohohohihihif

6 0
3 years ago
On a large scale farm there are 6 more pigs than cows,4 times as many goats as pigs and two-thirds as many sheep As goats
Zinaida [17]

cows = y

pigs = y + 6

goats = 4(y+6) = 4y+ 24

sheep = 2/3 * (4y + 24) = 8/3y + 16

sol.

total

= y+y+6+4y+24+8/3y+16

=26/3y + 46

sheep = 112 = 8/3 y + 16

8/3y = 112-16

y= (112 - 16)*3/8

y = 36

then substitute y with 36 in the total equation so yeah...

36+36+6+4(36)+24+8/3(36)+16

=358 animals

8 0
3 years ago
(-m^2+6)+(-4m^2+7m+2)​
marta [7]

Answer:

-5m^2+7m+8

Step-by-step explanation:

We are given the equations

(-m^2+6)+(-4m^2+7+2)

We need to combine like terms. As there are no exponents or numbers outside the parenthesis, we can just drop them and add all like terms

-m^2+6-4m^2+7m+2\\\\-5m^2+7m+8

4 0
3 years ago
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