All categories

3 years ago

Solve the system. x + y = 8 2x2 – y = –5 Add the equations

2 answers:

6 0

Answer: Solve the system. x + y = 8 2x2 – y = –5 Add the equations, then choose the result. 3x2 = –13 3x2 = 3 2x2… Get the answers you need, now!

2 answers

Top answer:

2x^2 - y = -5 x + y = 8----------------add2x^2 + x = 3 <==** 2x^2 and x cannot be add

Step-by-step explanation: HAVE A GREAT DAY

Leya [2.2K]3 years ago

5 0

Answer:

X+Y = 8

2X-Y =-5

(X+2X+Y-Y)=8-5

3X=3

X=1

1+Y=8

Y=8-1

Y=7

You might be interested in

You need a loan of $100,000 to buy a condo.Calculate both your monthly payments and total closing cost for each choice. A.)choic

choli [55]

C) choice one $477.42, $3222

3 0

3 years ago

can someone please help me with this word problem?

Irina-Kira [14]

Answer:

abcdefghijklmnopqrstuv

Step-by-step explanation:

4 0

3 years ago

Multiple polynomial the (x^3+3x^2+1)(3x^2+6x-2)

Mrrafil [7]

The product of given polynomials is: $3x^5+15x^4-16x^3-3x^2+6x-2$

Step-by-step explanation:

Given polynomials are:

$(x^3+3x^2+1)\\and\\(3x^2+6x-2)$

In order to multiply both polynomials, we will use the distributive property

So,

$= (x^3+3x^2+1)(3x^2+6x-2)\\=x^3(3x^2+6x-2)+3x^2(3x^2+6x-2)+1(3x^2+6x-2)\\=3x^5+6x^4-2x^3+9x^4+18x^3-6x^2+3x^2+6x-2$

Combining like terms

$=3x^5+6x^4+9x^4-2x^3+18x^3+3x^2-6x^2+6x-2\\=3x^5+15x^4-16x^3-3x^2+6x-2$

Hence,

The product of given polynomials is: $3x^5+15x^4-16x^3-3x^2+6x-2$

Keywords: Polynomials, variables

Learn more about polynomials at:

#LearnwithBrainly

6 0

4 years ago

the standard form of linear equation is Ax + By = C. if b=0 and a and C are positive, which best describes the graph of this equ

Elodia [21]

Answer:

It is a vertical line

Step-by-step explanation:

the equation will be in the form of Ax=C hence we can make X the subject of the formula giving

$x = \frac{ a}{c}$

8 0

3 years ago

Read 2 more answers

Which is the best first step when solving the following system of equations?x+y=3 and 4x-y=7

fomenos

I think it would be x+y=3

Hope this helps

8 0

3 years ago