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Serhud [2]
3 years ago
5

Simply combining like teams 3a-2b-ab-(a-b+ab)-4ab+2b-a STEP explanation plss​

Mathematics
1 answer:
Georgia [21]3 years ago
4 0

Answer:

-6 a b + b + a

Step-by-step explanation:

Simplify the following:

-(a - b + a b) - a b - 4 a b + 2 b - 2 b + 3 a - a

Hint: | Group like terms in 3 a - 2 b - a b - (a b - b + a) - 4 a b + 2 b - a.

Grouping like terms, 3 a - 2 b - a b - (a b - b + a) - 4 a b + 2 b - a = -(a b - b + a) + (-a b - 4 a b) + (3 a - a) + (2 b - 2 b):

-(a b - b + a) + (-a b - 4 a b) + (3 a - a) + (2 b - 2 b)

Hint: | Combine like terms in -a b - 4 a b.

a b (-1) + a b (-4) = -5 a b:

-(a b - b + a) + -5 a b + (3 a - a) + (2 b - 2 b)

Hint: | Combine like terms in 3 a - a.

3 a - a = 2 a:

-(a b - b + a) - 5 a b + 2 a + (2 b - 2 b)

Hint: | Look for the difference of two identical terms.

2 b - 2 b = 0:

-(a b - b + a) - 5 a b + 2 a

Hint: | Distribute -1 over a b - b + a.

-(a b - b + a) = -a b + b - a:

-a b + b - a - 5 a b + 2 a

Hint: | Group like terms in -a b - 5 a b + b + 2 a - a.

Grouping like terms, -a b - 5 a b + b + 2 a - a = (-a b - 5 a b) + b + (-a + 2 a):

(-a b - 5 a b) + b + (-a + 2 a)

Hint: | Combine like terms in -a b - 5 a b.

a b (-1) + a b (-5) = -6 a b:

-6 a b + b + (2 a - a)

Hint: | Combine like terms in 2 a - a.

2 a - a = a:

Answer: -6 a b + b + a

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Two fifths of the square of a number j
Phantasy [73]

Answer:

2j²/5

Step-by-step explanation:

We know that j has to be squared so j², and to find 2/5's of that number we need to multiply it by 2/5.

j²×(2/5)

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3 years ago
Which equation is the inverse of y=7x^2 - 10
4vir4ik [10]

Answer:

Depends on domain of x, could be

-√(y+10)/7; √(y+10)/7 or no solutions

Step-by-step explanation:

You need to solve it for x:

y=7x^2-10

7x^2=y+10

x^2=(y+10)/7

In order for this equation to have an inverse, you need to check the domain of x. There needs to be only one solution for x^2=(y+10)/7 - either positive or negative, depending on the domain.

8 0
3 years ago
Line A is represented by the equation, y = 1/4x + 5 . (a) Write in slope-intercept form, the equation of a line that is steeper
8_murik_8 [283]

Answer:

  • y = x + 5
  • y = 1/4x + 1

Step-by-step explanation:

<u>Given line</u>

  • y = 1/4x + 5

(a)

<em>A steeper line has a greater slope</em>

So the line

  • y = x + 5

Is 4 times steeper than the given line

(b)

<em>Vertical shift down of a function y is the function (y - 4)</em>

<u>So the required line is:</u>

  • y = 1/4x + 5 - 4
  • y = 1/4x + 1
4 0
3 years ago
Read 2 more answers
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