3 years ago

What must be added to 3x-7 to make x^2+4x-1

Mathematics

2 answers:

marta [7]3 years ago

3 0

3x-7+c=x^2+4x-1
find c
minus 3x from both sides
-7+c=x^2+x-1
add 7 to both sides
c=x^2+x+6

x^2+x+6 must be added

Gemiola [76]3 years ago

3 0

The term that can be added is the difference between the two expressions you have:

x^2+4x-1-(3x-7)

x^2+4x-1-3x+7

x^2+x+6

You might be interested in

Can u show me the steps for answering this question

Oliga [24]

Answer: 6(2x+3)

Step-by-step explanation: its a factor

7 0

3 years ago

Find the values of x and y that make these triangles congruent by the HL Theorem.

Temka [501]

Answer:

The answer is X=6 & Y=3 ......

3 0

4 years ago

Solve the system of linear equations using any method 6x+6y=-6, 5x+y=-13

Sergio [31]

Answer:

x=-3

y=2

Step-by-step explanation:

To solve this problem you can use the elimination method:

- Multiply the second equation by -6:

$(-6)5x+y=-13\\-30x-6y=78$

- Add both equations:

$6x+6y=-6\\-30x-6y=78\\-------\\-24x=72\\x=-3$

- Substitute the value of x into one of the original equations and solve for y:

$6(-3)+6y=-6\\-18+6y=-6\\6y=12\\y=2$

8 0

3 years ago

Read 2 more answers

If the area of a square is 32 ft2, how long is its diagonal?

Tema [17]

Diagonal = 8

D=diagonal

A=area

A=D^/2

32=D^/2

32/1 = D^/2

cross multiplication

32x2=D^x1

64=D^

8 =D

7 0

3 years ago

You can ride your bike around your block twice and the whole neighborhood once in 10 minutes. You can ride your bike around your

Bond [772]

I THINK,4=31
1=?
(1*31)/4=x
X=31/4
X=7.75minute to ride around the neighborhood once
It may not be correct

6 0

3 years ago