2 years ago

1. (3x3 + 3x2 - 4x + 5) + (x2 – 2x + x 4) |

Mathematics

2 answers:

Slav-nsk [51]2 years ago

8 0

Answer:

20-4x

Step-by-step explanation:

3x3+3x2-4x+5

9+3x2-4x+5

9+6-4x+5

20 - 4x

KonstantinChe [14]2 years ago

6 0

Answer:

$x^{2} + 3x^{3} + 4x^{2} - 6x + 5$

Step-by-step explanation:

first remove the parentheses

then add the like terms

lastly reorder the terms

You might be interested in

Solve the system of equations

Veseljchak [2.6K]

Answer:

Option c is right:

(-6 , 2)

Step-by-step explanation:

( -6 , 2)

7 0

2 years ago

Factor completely, the expression: 2x^3-2x^2-12x

muminat

$2x^3-2x^2-12x=2x(x^2-x-6)=(*)\\\\------------------------------\\x^2-x-6\\\\a=1;\ b=-1;\ c=-6\\\\\Delta=(-1)^2-4\cdot1\cdot(-6)=1+24=25\\\\\sqrt\Delta=\sqrt{25}=5\\\\x_1=\frac{1-5}{2\cdot1}=\frac{-4}{2}=-2;\ x_2=\frac{1+5}{2\cdot1}=\frac{6}{2}=3\\\\x^2-x-6=(x+2)(x-3)\\\\------------------------------\\\\(*)=2x(x+2)(x-3)$