1 year ago

Factor (a-2b) (3x-5y) + (2b-a)(x-y)

Mathematics

1 answer:

agasfer [191]1 year ago

6 0

Answer:

8by + 2ax - 4bx - 4ay

Step-by-step explanation:

I assume you mean expand so:

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

3ax - 5ay - 6bx + 10by + 2bx - 2by - ax + ay

Now collect like terms:

2ax - 4ay - 4bx + 8by

This is your answer but in a better order:

8by + 2ax - 4bx - 4ay

You might be interested in

Using the expansion for the binomial: ( x^3 − y^4 )^9 :The coefficient for the 6th term is

Lelechka [254]

Answer:

-126

Step-by-step explanation:

For the binomial expression $(a-b)^{n}$ the coefficient of $(r+1)^{th}$ term is given by ${n \choose r} \times -1^{(r)}$ .

We have to find the coefficient of 6th term in the binomial expansion of

$(x^{3}-y^{4})^{9}$ .

Hence n=9 and r=5

The coefficient of 6th term = ${9 \choose 5} \times (-1)^{5}$

= $-{9 \choose 5}$

= -126

8 0

2 years ago

4.5 x 30 = tenths x 30 =

Ira Lisetskai [31]

Answer:

4.5 x 30 = 135

0.1 x 30 = 3

Hint: something multiplied by 0.1 is the same as that same thing divided by 10.

3 0

2 years ago

What is the slope of line A help ASAP

loris [4]

The slope of line A is m= 1/3

3 0

2 years ago

Read 2 more answers

Help please im pretty sure this is called angle sum theory but I could be wrong

DENIUS [597]

y = 25

Step-by-step explanation:

=> 115 = y + 90 {exterior angle of triangle is equal to the sum of its opposite two interior angles}

=> 115 = y + 90 

=> 115-90 =y

=> 115 = y + 90

=> 115-90 =y

=> y = 25

6 0

1 year ago

Read 2 more answers

Consider the following quadratic equation x^2 =4x -5. How many solutions does it have?

aleksandrvk [35]

The answer for your question is C.

5 0

2 years ago

Read 2 more answers