3 years ago

Factor completely: 3x2 + 2x - 1

Mathematics

2 answers:

mamaluj [8]3 years ago

5 0

Answer:C

Step-by-step explanation:

Alex777 [14]3 years ago

4 0

$3x^{2}+2x-1=3x^{2}+3x-x-1= \\ \\ 3x(x+1)-(x+1)=(3x-1)(x+1)$

==================================
<em />
<em>"Associate with people who are likely to improve you."</em>

You might be interested in

Solve for x: 2/7(x-2)=4x

lawyer [7]

Answer:

$x = - \frac{2}{13}$

Step-by-step explanation:

Simplify to:

$\frac{2(x - 2)}{7}$

Multiply both sides by 7

2(x-2)=28x

Divide both sides by 2

x-2=14x

Subtract x from both sides

2=14x-x

Simplify 14x-x to 13x

2=13x

Divide both sides by 13

$- \frac{2}{13} = x$

Answer:

$x = - \frac{ 2}{13}$

6 0

2 years ago

Simplify the expression (3+i)(2+i)

vovikov84 [41]

Answer:

Step-by-step explanation:

hello :

(3+i)(2+i) = 6+3i+2i+i² but : i² = -1

(3+i)(2+i) = 5+5i

3 0

3 years ago

Read 2 more answers

I need an answer to this

Ulleksa [173]

Answer:

x=3

Step-by-step explanation:

x+1*5=20

x*5=15

15/5=3

Hope this helps! :)

4 0

3 years ago

Which is bigger -6 or -8

Alisiya [41]

Answer is -6. Whatever number is closer to 0 when negative will always be bigger. Good luck!

7 0

2 years ago

Read 2 more answers

3x+y=5 2x-2y=-2 solving systems of equations

yarga [219]

$3x+y=5 \ \ /*2 \\ 2x-2y=-2 \\ \\ 6x+2y= 10\\ 2x-2y=-2 \\ + ----- \\8x=8 \ \ / :8\\x=1 \\ \\3*1+y=5 \\ y=5-3\\y=2\\ \\ Answer : \\ \\ x=1 \\ y=2$

4 0

2 years ago

Read 2 more answers