1 year ago

If y=3x+5 and z=x^2+2x-5, what is yz?

Mathematics

1 answer:

Hitman42 [59]1 year ago

6 0

<h3>Answer: 3x^3 + 11x^2 - 5x - 25</h3>

Work Shown:

yz = y(x^2+2x-5)

yz = y(x^2) + y(2x) + y(-5)

yz = x^2( y ) + 2x( y ) - 5( y )

yz = x^2( 3x+5 ) + 2x( 3x+5 ) - 5( 3x+5 )

yz = x^2*3x + x^2*5 + 2x*3x + 2x*5 - 5*3x - 5*5

yz = 3x^3 + 5x^2 + 6x^2 + 10x - 15x - 25

yz = 3x^3 + 11x^2 - 5x - 25

You might be interested in

If b=6 find the value of 7b

Bogdan [553]

-----------------------------------------
Given Equation
-----------------------------------------
7b

-----------------------------------------
Substitute b = 6
-----------------------------------------
7 (6) = 42

-----------------------------------------
Answer: 42
-----------------------------------------

4 0

3 years ago

Six friends share 4 apples equally. How much

zvonat [6]

4 divided by 6 is 0.6666666667

3 0

2 years ago

Find m angle LKJif m angle LKD=60^ and m angle DKJ=55^

FinnZ [79.3K]

Answer:

<LKJ = 115°

Step-by-step explanation:

<LKJ = <LKD + <DKJ

<LKJ = 60°+55°

<LKJ = 115°

Answered by GAUTHMATH

4 0

2 years ago

Read 2 more answers

Part A: Larry earned $11 walking his neighbors' dogs on Saturday. He earned some extra money on Sunday doing the same thing. Wri

djyliett [7]

So for part a the answer with be 11/6
Why 6 because count the weeks that wil be 6 so Monday Tuesday Wednesday thursaday and Friday then comes Saturday

3 0

2 years ago

Read 2 more answers

3(x-5)=9 i don't know what to do

Dafna1 [17]

Answer:

x=8

Step-by-step explanation:

3(x-5)=9

3x-15=9

3x-15+15=9+15

3x=24

x=8

8 0

2 years ago

Read 2 more answers