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Pepsi [2]
3 years ago
12

Whats the answer (5x+4y)(x-y)

Mathematics
1 answer:
Natali5045456 [20]3 years ago
6 0

Answer:

5x²-xy-4y²

Step-by-step explanation:

You might be interested in
Solve by completing the square
Sveta_85 [38]

\qquad\qquad\huge\underline{{\sf Answer}}☂

Let's solve ~

\qquad \sf  \dashrightarrow \:  {x}^{2} + 8x = 33

\qquad \sf  \dashrightarrow \:  {x}^{2} + 8x +16 = 33 + 16

\qquad \sf  \dashrightarrow \: (x + 4) {}^{2}  = 49

\qquad \sf  \dashrightarrow \: x + 4 =  \sqrt{49}

\qquad \sf  \dashrightarrow \: x + 4 =  \pm7

Hence, there are two solutions ~

  • 1. when x + 4 = 7

\qquad \sf  \dashrightarrow \: x + 4 = 7

\qquad \sf  \dashrightarrow \: x = 7 - 4

\qquad \sf  \dashrightarrow \: x = 3

  • 2. when x + 4 = -7

\qquad \sf  \dashrightarrow \: x + 4 =  - 7

\qquad \sf  \dashrightarrow \: x  =  - 7 - 4

\qquad \sf  \dashrightarrow \: x  =   - 11

I hope you understood ~

8 0
2 years ago
Hassan and Dionnie played a game of darts, and Dionnie scored 4 more points than Hassan. The total of their scores was 180. How
Varvara68 [4.7K]

Answer:

Let Hassan score be X

Then Dionnie score will be  X + 4

: the sum of Hassan and Dionnie is 180

X + ( X + 4 ) = 180

X + X + 4 = 180

COLLECTING LIKE TERMS

2X = 180 – 4

2X = 176

DIVIDING EACH TERM BY 2

2X/2 = 176/2

X = 88

: Hassan scored 88 and Dionnie score 92

Step-by-step explanation:

6 0
2 years ago
MATH HELP PLEASE DRAW,, GEOMETRY ;3
Sophie [7]

E(1,-4)  F(1,-6)  G(-3,-5)  H(-3,-3)

7 0
3 years ago
What is the average rate of change of the function
Reptile [31]

Answer:

Average rate of change =-35.7084

Step-by-step explanation:

Given function is f(x)=480(0.3)^x and we need to find average rate of change of the function from x=1\ to\ x=5.

Average rate of change =\frac{f(b)-f(a)}{b-a}

So,

here\ b=5\ and\ a=1\\f(5)=480(0.3)^5\\=480\times0.00243=1.1664\\and\\f(1)=480(0.3)^1\\=480\times0.3=144

Average rate of change

=\frac{f(b)-f(a)}{b-a}\\\\=\frac{f(5)-f(1)}{5-1}\\\\=\frac{1.1664-144}{5-1}\\\\=\frac{-142.8336}{4}= -35.7084

Hence, average rate of change of the function f(x)=480(0.3)^x over the intervel x=1\ to\ x=5 is =-35.7084.  

5 0
3 years ago
Which expression gives the volume of a sphere with radius 5?
lys-0071 [83]

Answer:

it is d

Step-by-step explanation:

formula of sphere=4/3* pi*r cubed

5 0
3 years ago
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